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Finding the Fourth Proportional to 83,693.49, 115,496.65 and 45,452.77

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Solution

The fourth proportional to 83,693.49, 115,496.65 and 45,452.77 is: 62,724.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,693.49 : 115,496.65 = 45,452.77 : x
  2. Step 2: Convert to fraction form
    83,693.49/115,496.65 = 45,452.77/x
  3. Step 3: Cross multiply
    83,693.49x = 115,496.65 × 45,452.77
  4. Step 4: Simplify right side
    83,693.49x = 5,249,642,668.22
  5. Step 5: Solve for x
    x = 5,249,642,668.22/83,693.49
  6. Step 6: Final answer
    x = 62,724.62

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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.