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Finding the Fourth Proportional to 59,887.28, 89,811.48 and 28,292.96

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Solution

The fourth proportional to 59,887.28, 89,811.48 and 28,292.96 is: 42,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,887.28 : 89,811.48 = 28,292.96 : x
  2. Step 2: Convert to fraction form
    59,887.28/89,811.48 = 28,292.96/x
  3. Step 3: Cross multiply
    59,887.28x = 89,811.48 × 28,292.96
  4. Step 4: Simplify right side
    59,887.28x = 2,541,032,611.18
  5. Step 5: Solve for x
    x = 2,541,032,611.18/59,887.28
  6. Step 6: Final answer
    x = 42,430.26

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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.