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Finding the Fourth Proportional to 83,432.44, 115,145.03 and 47,627.84

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Solution

The fourth proportional to 83,432.44, 115,145.03 and 47,627.84 is: 65,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,432.44 : 115,145.03 = 47,627.84 : x
  2. Step 2: Convert to fraction form
    83,432.44/115,145.03 = 47,627.84/x
  3. Step 3: Cross multiply
    83,432.44x = 115,145.03 × 47,627.84
  4. Step 4: Simplify right side
    83,432.44x = 5,484,109,065.64
  5. Step 5: Solve for x
    x = 5,484,109,065.64/83,432.44
  6. Step 6: Final answer
    x = 65,731.14

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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.