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Finding the Fourth Proportional to 37,314.80, 55,972.20 and 9,612.80

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Solution

The fourth proportional to 37,314.80, 55,972.20 and 9,612.80 is: 14,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,314.80 : 55,972.20 = 9,612.80 : x
  2. Step 2: Convert to fraction form
    37,314.80/55,972.20 = 9,612.80/x
  3. Step 3: Cross multiply
    37,314.80x = 55,972.20 × 9,612.80
  4. Step 4: Simplify right side
    37,314.80x = 538,049,564.16
  5. Step 5: Solve for x
    x = 538,049,564.16/37,314.80
  6. Step 6: Final answer
    x = 14,419.20

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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.