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Finding the Fourth Proportional to 58,000.32, 86,986.62 and 42,389.24

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Solution

The fourth proportional to 58,000.32, 86,986.62 and 42,389.24 is: 63,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,000.32 : 86,986.62 = 42,389.24 : x
  2. Step 2: Convert to fraction form
    58,000.32/86,986.62 = 42,389.24/x
  3. Step 3: Cross multiply
    58,000.32x = 86,986.62 × 42,389.24
  4. Step 4: Simplify right side
    58,000.32x = 3,687,296,711.97
  5. Step 5: Solve for x
    x = 3,687,296,711.97/58,000.32
  6. Step 6: Final answer
    x = 63,573.73

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1.5x scale

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.