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Finding the Fourth Proportional to 83,598.99, 115,366.56 and 47,789.76

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Solution

The fourth proportional to 83,598.99, 115,366.56 and 47,789.76 is: 65,949.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,598.99 : 115,366.56 = 47,789.76 : x
  2. Step 2: Convert to fraction form
    83,598.99/115,366.56 = 47,789.76/x
  3. Step 3: Cross multiply
    83,598.99x = 115,366.56 × 47,789.76
  4. Step 4: Simplify right side
    83,598.99x = 5,513,340,214.43
  5. Step 5: Solve for x
    x = 5,513,340,214.43/83,598.99
  6. Step 6: Final answer
    x = 65,949.84

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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.