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Finding the Fourth Proportional to 83,595.42, 115,350.84 and 47,787.78

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Solution

The fourth proportional to 83,595.42, 115,350.84 and 47,787.78 is: 65,940.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,595.42 : 115,350.84 = 47,787.78 : x
  2. Step 2: Convert to fraction form
    83,595.42/115,350.84 = 47,787.78/x
  3. Step 3: Cross multiply
    83,595.42x = 115,350.84 × 47,787.78
  4. Step 4: Simplify right side
    83,595.42x = 5,512,360,564.74
  5. Step 5: Solve for x
    x = 5,512,360,564.74/83,595.42
  6. Step 6: Final answer
    x = 65,940.94

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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.