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Finding the Fourth Proportional to 58,079.47, 79,627.85 and 57,029.71

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Solution

The fourth proportional to 58,079.47, 79,627.85 and 57,029.71 is: 78,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,079.47 : 79,627.85 = 57,029.71 : x
  2. Step 2: Convert to fraction form
    58,079.47/79,627.85 = 57,029.71/x
  3. Step 3: Cross multiply
    58,079.47x = 79,627.85 × 57,029.71
  4. Step 4: Simplify right side
    58,079.47x = 4,541,153,193.42
  5. Step 5: Solve for x
    x = 4,541,153,193.42/58,079.47
  6. Step 6: Final answer
    x = 78,188.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.