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Finding the Fourth Proportional to 15,687.66, 23,531.46 and 7,367.65

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Solution

The fourth proportional to 15,687.66, 23,531.46 and 7,367.65 is: 11,051.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687.66 : 23,531.46 = 7,367.65 : x
  2. Step 2: Convert to fraction form
    15,687.66/23,531.46 = 7,367.65/x
  3. Step 3: Cross multiply
    15,687.66x = 23,531.46 × 7,367.65
  4. Step 4: Simplify right side
    15,687.66x = 173,371,474.81
  5. Step 5: Solve for x
    x = 173,371,474.81/15,687.66
  6. Step 6: Final answer
    x = 11,051.45

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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.