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Finding the Fourth Proportional to 55,737.78, 83,557.45 and 42,648.59

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Solution

The fourth proportional to 55,737.78, 83,557.45 and 42,648.59 is: 63,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,737.78 : 83,557.45 = 42,648.59 : x
  2. Step 2: Convert to fraction form
    55,737.78/83,557.45 = 42,648.59/x
  3. Step 3: Cross multiply
    55,737.78x = 83,557.45 × 42,648.59
  4. Step 4: Simplify right side
    55,737.78x = 3,563,607,426.50
  5. Step 5: Solve for x
    x = 3,563,607,426.50/55,737.78
  6. Step 6: Final answer
    x = 63,935.22

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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.