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Finding the Fourth Proportional to 83,864.84, 115,735.64 and 45,626.76

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Solution

The fourth proportional to 83,864.84, 115,735.64 and 45,626.76 is: 62,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,864.84 : 115,735.64 = 45,626.76 : x
  2. Step 2: Convert to fraction form
    83,864.84/115,735.64 = 45,626.76/x
  3. Step 3: Cross multiply
    83,864.84x = 115,735.64 × 45,626.76
  4. Step 4: Simplify right side
    83,864.84x = 5,280,642,269.73
  5. Step 5: Solve for x
    x = 5,280,642,269.73/83,864.84
  6. Step 6: Final answer
    x = 62,966.10

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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.