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Finding the Fourth Proportional to 58,711.55, 81,583.99 and 58,101.93

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Solution

The fourth proportional to 58,711.55, 81,583.99 and 58,101.93 is: 80,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,711.55 : 81,583.99 = 58,101.93 : x
  2. Step 2: Convert to fraction form
    58,711.55/81,583.99 = 58,101.93/x
  3. Step 3: Cross multiply
    58,711.55x = 81,583.99 × 58,101.93
  4. Step 4: Simplify right side
    58,711.55x = 4,740,187,130.85
  5. Step 5: Solve for x
    x = 4,740,187,130.85/58,711.55
  6. Step 6: Final answer
    x = 80,736.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.