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Finding the Fourth Proportional to 83,752.95, 115,579.53 and 45,512.79

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Solution

The fourth proportional to 83,752.95, 115,579.53 and 45,512.79 is: 62,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,752.95 : 115,579.53 = 45,512.79 : x
  2. Step 2: Convert to fraction form
    83,752.95/115,579.53 = 45,512.79/x
  3. Step 3: Cross multiply
    83,752.95x = 115,579.53 × 45,512.79
  4. Step 4: Simplify right side
    83,752.95x = 5,260,346,877.19
  5. Step 5: Solve for x
    x = 5,260,346,877.19/83,752.95
  6. Step 6: Final answer
    x = 62,807.90

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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.