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Finding the Fourth Proportional to 17,937.60, 24,740.40 and 10,855.20

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Solution

The fourth proportional to 17,937.60, 24,740.40 and 10,855.20 is: 14,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,937.60 : 24,740.40 = 10,855.20 : x
  2. Step 2: Convert to fraction form
    17,937.60/24,740.40 = 10,855.20/x
  3. Step 3: Cross multiply
    17,937.60x = 24,740.40 × 10,855.20
  4. Step 4: Simplify right side
    17,937.60x = 268,561,990.08
  5. Step 5: Solve for x
    x = 268,561,990.08/17,937.60
  6. Step 6: Final answer
    x = 14,972.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.