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Finding the Fourth Proportional to 75,680.76, 104,394.78 and 47,337.24

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Solution

The fourth proportional to 75,680.76, 104,394.78 and 47,337.24 is: 65,297.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,680.76 : 104,394.78 = 47,337.24 : x
  2. Step 2: Convert to fraction form
    75,680.76/104,394.78 = 47,337.24/x
  3. Step 3: Cross multiply
    75,680.76x = 104,394.78 × 47,337.24
  4. Step 4: Simplify right side
    75,680.76x = 4,941,760,755.61
  5. Step 5: Solve for x
    x = 4,941,760,755.61/75,680.76
  6. Step 6: Final answer
    x = 65,297.45

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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.