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Finding the Fourth Proportional to 60,871.80, 91,308.90 and 27,585.72

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Solution

The fourth proportional to 60,871.80, 91,308.90 and 27,585.72 is: 41,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,871.80 : 91,308.90 = 27,585.72 : x
  2. Step 2: Convert to fraction form
    60,871.80/91,308.90 = 27,585.72/x
  3. Step 3: Cross multiply
    60,871.80x = 91,308.90 × 27,585.72
  4. Step 4: Simplify right side
    60,871.80x = 2,518,821,748.91
  5. Step 5: Solve for x
    x = 2,518,821,748.91/60,871.80
  6. Step 6: Final answer
    x = 41,379.12

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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.