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Finding the Fourth Proportional to 15,122.70, 22,664.88 and 6,347.43

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Solution

The fourth proportional to 15,122.70, 22,664.88 and 6,347.43 is: 9,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122.70 : 22,664.88 = 6,347.43 : x
  2. Step 2: Convert to fraction form
    15,122.70/22,664.88 = 6,347.43/x
  3. Step 3: Cross multiply
    15,122.70x = 22,664.88 × 6,347.43
  4. Step 4: Simplify right side
    15,122.70x = 143,863,739.26
  5. Step 5: Solve for x
    x = 143,863,739.26/15,122.70
  6. Step 6: Final answer
    x = 9,513.10

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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.