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Finding the Fourth Proportional to 60,264.25, 90,278.70 and 28,629.28

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Solution

The fourth proportional to 60,264.25, 90,278.70 and 28,629.28 is: 42,888.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,264.25 : 90,278.70 = 28,629.28 : x
  2. Step 2: Convert to fraction form
    60,264.25/90,278.70 = 28,629.28/x
  3. Step 3: Cross multiply
    60,264.25x = 90,278.70 × 28,629.28
  4. Step 4: Simplify right side
    60,264.25x = 2,584,614,180.34
  5. Step 5: Solve for x
    x = 2,584,614,180.34/60,264.25
  6. Step 6: Final answer
    x = 42,888.02

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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.