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Finding the Fourth Proportional to 14,571.60, 21,862.92 and 8,732.40

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Solution

The fourth proportional to 14,571.60, 21,862.92 and 8,732.40 is: 13,101.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,571.60 : 21,862.92 = 8,732.40 : x
  2. Step 2: Convert to fraction form
    14,571.60/21,862.92 = 8,732.40/x
  3. Step 3: Cross multiply
    14,571.60x = 21,862.92 × 8,732.40
  4. Step 4: Simplify right side
    14,571.60x = 190,915,762.61
  5. Step 5: Solve for x
    x = 190,915,762.61/14,571.60
  6. Step 6: Final answer
    x = 13,101.91

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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.