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Finding the Fourth Proportional to 58,658.52, 80,894.34 and 39,243.18

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Solution

The fourth proportional to 58,658.52, 80,894.34 and 39,243.18 is: 54,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,658.52 : 80,894.34 = 39,243.18 : x
  2. Step 2: Convert to fraction form
    58,658.52/80,894.34 = 39,243.18/x
  3. Step 3: Cross multiply
    58,658.52x = 80,894.34 × 39,243.18
  4. Step 4: Simplify right side
    58,658.52x = 3,174,551,145.60
  5. Step 5: Solve for x
    x = 3,174,551,145.60/58,658.52
  6. Step 6: Final answer
    x = 54,119.18

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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.