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Finding the Fourth Proportional to 79,635.74, 109,897.32 and 43,825.74

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Solution

The fourth proportional to 79,635.74, 109,897.32 and 43,825.74 is: 60,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,635.74 : 109,897.32 = 43,825.74 : x
  2. Step 2: Convert to fraction form
    79,635.74/109,897.32 = 43,825.74/x
  3. Step 3: Cross multiply
    79,635.74x = 109,897.32 × 43,825.74
  4. Step 4: Simplify right side
    79,635.74x = 4,816,331,373.02
  5. Step 5: Solve for x
    x = 4,816,331,373.02/79,635.74
  6. Step 6: Final answer
    x = 60,479.52

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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.