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Finding the Fourth Proportional to 15,985.20, 24,006.60 and 11,607.60

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Solution

The fourth proportional to 15,985.20, 24,006.60 and 11,607.60 is: 17,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.20 : 24,006.60 = 11,607.60 : x
  2. Step 2: Convert to fraction form
    15,985.20/24,006.60 = 11,607.60/x
  3. Step 3: Cross multiply
    15,985.20x = 24,006.60 × 11,607.60
  4. Step 4: Simplify right side
    15,985.20x = 278,659,010.16
  5. Step 5: Solve for x
    x = 278,659,010.16/15,985.20
  6. Step 6: Final answer
    x = 17,432.31

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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.