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Finding the Fourth Proportional to 55,876.52, 77,127.70 and 35,787.48

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Solution

The fourth proportional to 55,876.52, 77,127.70 and 35,787.48 is: 49,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,876.52 : 77,127.70 = 35,787.48 : x
  2. Step 2: Convert to fraction form
    55,876.52/77,127.70 = 35,787.48/x
  3. Step 3: Cross multiply
    55,876.52x = 77,127.70 × 35,787.48
  4. Step 4: Simplify right side
    55,876.52x = 2,760,206,021.20
  5. Step 5: Solve for x
    x = 2,760,206,021.20/55,876.52
  6. Step 6: Final answer
    x = 49,398.32

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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.