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Finding the Fourth Proportional to 55,937.76, 77,195.76 and 30,787.26

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Solution

The fourth proportional to 55,937.76, 77,195.76 and 30,787.26 is: 42,487.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,937.76 : 77,195.76 = 30,787.26 : x
  2. Step 2: Convert to fraction form
    55,937.76/77,195.76 = 30,787.26/x
  3. Step 3: Cross multiply
    55,937.76x = 77,195.76 × 30,787.26
  4. Step 4: Simplify right side
    55,937.76x = 2,376,645,934.02
  5. Step 5: Solve for x
    x = 2,376,645,934.02/55,937.76
  6. Step 6: Final answer
    x = 42,487.33

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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.