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Finding the Fourth Proportional to 58,665.78, 80,952.78 and 36,005.72

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Solution

The fourth proportional to 58,665.78, 80,952.78 and 36,005.72 is: 49,684.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,665.78 : 80,952.78 = 36,005.72 : x
  2. Step 2: Convert to fraction form
    58,665.78/80,952.78 = 36,005.72/x
  3. Step 3: Cross multiply
    58,665.78x = 80,952.78 × 36,005.72
  4. Step 4: Simplify right side
    58,665.78x = 2,914,763,129.90
  5. Step 5: Solve for x
    x = 2,914,763,129.90/58,665.78
  6. Step 6: Final answer
    x = 49,684.21

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1.5x scale

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.