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Finding the Fourth Proportional to 58,363.32, 87,572.31 and 28,765.02

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Solution

The fourth proportional to 58,363.32, 87,572.31 and 28,765.02 is: 43,161.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,363.32 : 87,572.31 = 28,765.02 : x
  2. Step 2: Convert to fraction form
    58,363.32/87,572.31 = 28,765.02/x
  3. Step 3: Cross multiply
    58,363.32x = 87,572.31 × 28,765.02
  4. Step 4: Simplify right side
    58,363.32x = 2,519,018,810.73
  5. Step 5: Solve for x
    x = 2,519,018,810.73/58,363.32
  6. Step 6: Final answer
    x = 43,161.00

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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.