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Finding the Fourth Proportional to 58,386.92, 80,579.90 and 35,740.87

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Solution

The fourth proportional to 58,386.92, 80,579.90 and 35,740.87 is: 49,326.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,386.92 : 80,579.90 = 35,740.87 : x
  2. Step 2: Convert to fraction form
    58,386.92/80,579.90 = 35,740.87/x
  3. Step 3: Cross multiply
    58,386.92x = 80,579.90 × 35,740.87
  4. Step 4: Simplify right side
    58,386.92x = 2,879,995,753.26
  5. Step 5: Solve for x
    x = 2,879,995,753.26/58,386.92
  6. Step 6: Final answer
    x = 49,326.04

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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.