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Finding the Fourth Proportional to 18,306.66, 27,459.98 and 15,834.12

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Solution

The fourth proportional to 18,306.66, 27,459.98 and 15,834.12 is: 23,751.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.66 : 27,459.98 = 15,834.12 : x
  2. Step 2: Convert to fraction form
    18,306.66/27,459.98 = 15,834.12/x
  3. Step 3: Cross multiply
    18,306.66x = 27,459.98 × 15,834.12
  4. Step 4: Simplify right side
    18,306.66x = 434,804,618.52
  5. Step 5: Solve for x
    x = 434,804,618.52/18,306.66
  6. Step 6: Final answer
    x = 23,751.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.