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Finding the Fourth Proportional to 67,659.86, 93,347.84 and 39,342.26

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Solution

The fourth proportional to 67,659.86, 93,347.84 and 39,342.26 is: 54,279.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,659.86 : 93,347.84 = 39,342.26 : x
  2. Step 2: Convert to fraction form
    67,659.86/93,347.84 = 39,342.26/x
  3. Step 3: Cross multiply
    67,659.86x = 93,347.84 × 39,342.26
  4. Step 4: Simplify right side
    67,659.86x = 3,672,514,991.72
  5. Step 5: Solve for x
    x = 3,672,514,991.72/67,659.86
  6. Step 6: Final answer
    x = 54,279.08

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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.