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Finding the Fourth Proportional to 23,619.20, 35,428.80 and 14,892.80

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Solution

The fourth proportional to 23,619.20, 35,428.80 and 14,892.80 is: 22,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,619.20 : 35,428.80 = 14,892.80 : x
  2. Step 2: Convert to fraction form
    23,619.20/35,428.80 = 14,892.80/x
  3. Step 3: Cross multiply
    23,619.20x = 35,428.80 × 14,892.80
  4. Step 4: Simplify right side
    23,619.20x = 527,634,032.64
  5. Step 5: Solve for x
    x = 527,634,032.64/23,619.20
  6. Step 6: Final answer
    x = 22,339.20

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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.