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Finding the Fourth Proportional to 15,032.40, 22,564.80 and 8,471.40

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Solution

The fourth proportional to 15,032.40, 22,564.80 and 8,471.40 is: 12,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,032.40 : 22,564.80 = 8,471.40 : x
  2. Step 2: Convert to fraction form
    15,032.40/22,564.80 = 8,471.40/x
  3. Step 3: Cross multiply
    15,032.40x = 22,564.80 × 8,471.40
  4. Step 4: Simplify right side
    15,032.40x = 191,155,446.72
  5. Step 5: Solve for x
    x = 191,155,446.72/15,032.40
  6. Step 6: Final answer
    x = 12,716.23

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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.