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Finding the Fourth Proportional to 9,220.40, 13,834.92 and 9,064.88

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Solution

The fourth proportional to 9,220.40, 13,834.92 and 9,064.88 is: 13,601.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.40 : 13,834.92 = 9,064.88 : x
  2. Step 2: Convert to fraction form
    9,220.40/13,834.92 = 9,064.88/x
  3. Step 3: Cross multiply
    9,220.40x = 13,834.92 × 9,064.88
  4. Step 4: Simplify right side
    9,220.40x = 125,411,889.61
  5. Step 5: Solve for x
    x = 125,411,889.61/9,220.40
  6. Step 6: Final answer
    x = 13,601.57

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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.