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Finding the Fourth Proportional to 45,287.70, 67,932.42 and 15,706.50

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Solution

The fourth proportional to 45,287.70, 67,932.42 and 15,706.50 is: 23,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,287.70 : 67,932.42 = 15,706.50 : x
  2. Step 2: Convert to fraction form
    45,287.70/67,932.42 = 15,706.50/x
  3. Step 3: Cross multiply
    45,287.70x = 67,932.42 × 15,706.50
  4. Step 4: Simplify right side
    45,287.70x = 1,066,980,554.73
  5. Step 5: Solve for x
    x = 1,066,980,554.73/45,287.70
  6. Step 6: Final answer
    x = 23,560.05

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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.