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Finding the Fourth Proportional to 9,935,510.40, 14,903,265.60 and 9,347,644.80

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Solution

The fourth proportional to 9,935,510.40, 14,903,265.60 and 9,347,644.80 is: 14,021,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,935,510.40 : 14,903,265.60 = 9,347,644.80 : x
  2. Step 2: Convert to fraction form
    9,935,510.40/14,903,265.60 = 9,347,644.80/x
  3. Step 3: Cross multiply
    9,935,510.40x = 14,903,265.60 × 9,347,644.80
  4. Step 4: Simplify right side
    9,935,510.40x = 139,310,433,188,858.89
  5. Step 5: Solve for x
    x = 139,310,433,188,858.89/9,935,510.40
  6. Step 6: Final answer
    x = 14,021,467.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.