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Finding the Fourth Proportional to 58,136.56, 80,243.80 and 34,279.12

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Solution

The fourth proportional to 58,136.56, 80,243.80 and 34,279.12 is: 47,314.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,136.56 : 80,243.80 = 34,279.12 : x
  2. Step 2: Convert to fraction form
    58,136.56/80,243.80 = 34,279.12/x
  3. Step 3: Cross multiply
    58,136.56x = 80,243.80 × 34,279.12
  4. Step 4: Simplify right side
    58,136.56x = 2,750,686,849.46
  5. Step 5: Solve for x
    x = 2,750,686,849.46/58,136.56
  6. Step 6: Final answer
    x = 47,314.23

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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.