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Finding the Fourth Proportional to 74,679.86, 112,019.78 and 22,085.24

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Solution

The fourth proportional to 74,679.86, 112,019.78 and 22,085.24 is: 33,127.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,679.86 : 112,019.78 = 22,085.24 : x
  2. Step 2: Convert to fraction form
    74,679.86/112,019.78 = 22,085.24/x
  3. Step 3: Cross multiply
    74,679.86x = 112,019.78 × 22,085.24
  4. Step 4: Simplify right side
    74,679.86x = 2,473,984,061.31
  5. Step 5: Solve for x
    x = 2,473,984,061.31/74,679.86
  6. Step 6: Final answer
    x = 33,127.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.