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Finding the Fourth Proportional to 56,763.52, 78,264.28 and 35,505.88

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Solution

The fourth proportional to 56,763.52, 78,264.28 and 35,505.88 is: 48,954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,763.52 : 78,264.28 = 35,505.88 : x
  2. Step 2: Convert to fraction form
    56,763.52/78,264.28 = 35,505.88/x
  3. Step 3: Cross multiply
    56,763.52x = 78,264.28 × 35,505.88
  4. Step 4: Simplify right side
    56,763.52x = 2,778,842,133.97
  5. Step 5: Solve for x
    x = 2,778,842,133.97/56,763.52
  6. Step 6: Final answer
    x = 48,954.72

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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.