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Finding the Fourth Proportional to 83,346.80, 115,018.65 and 47,535.89

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Solution

The fourth proportional to 83,346.80, 115,018.65 and 47,535.89 is: 65,599.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,346.80 : 115,018.65 = 47,535.89 : x
  2. Step 2: Convert to fraction form
    83,346.80/115,018.65 = 47,535.89/x
  3. Step 3: Cross multiply
    83,346.80x = 115,018.65 × 47,535.89
  4. Step 4: Simplify right side
    83,346.80x = 5,467,513,319.26
  5. Step 5: Solve for x
    x = 5,467,513,319.26/83,346.80
  6. Step 6: Final answer
    x = 65,599.56

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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.