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Finding the Fourth Proportional to 9,610.40, 14,415.60 and 5,916.80

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Solution

The fourth proportional to 9,610.40, 14,415.60 and 5,916.80 is: 8,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,610.40 : 14,415.60 = 5,916.80 : x
  2. Step 2: Convert to fraction form
    9,610.40/14,415.60 = 5,916.80/x
  3. Step 3: Cross multiply
    9,610.40x = 14,415.60 × 5,916.80
  4. Step 4: Simplify right side
    9,610.40x = 85,294,222.08
  5. Step 5: Solve for x
    x = 85,294,222.08/9,610.40
  6. Step 6: Final answer
    x = 8,875.20

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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.