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Finding the Fourth Proportional to 83,693.84, 115,496.42 and 45,965.66

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Solution

The fourth proportional to 83,693.84, 115,496.42 and 45,965.66 is: 63,432.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,693.84 : 115,496.42 = 45,965.66 : x
  2. Step 2: Convert to fraction form
    83,693.84/115,496.42 = 45,965.66/x
  3. Step 3: Cross multiply
    83,693.84x = 115,496.42 × 45,965.66
  4. Step 4: Simplify right side
    83,693.84x = 5,308,869,172.94
  5. Step 5: Solve for x
    x = 5,308,869,172.94/83,693.84
  6. Step 6: Final answer
    x = 63,432.02

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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.