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Finding the Fourth Proportional to 15,663.72, 23,479.14 and 7,336.74

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Solution

The fourth proportional to 15,663.72, 23,479.14 and 7,336.74 is: 10,997.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,663.72 : 23,479.14 = 7,336.74 : x
  2. Step 2: Convert to fraction form
    15,663.72/23,479.14 = 7,336.74/x
  3. Step 3: Cross multiply
    15,663.72x = 23,479.14 × 7,336.74
  4. Step 4: Simplify right side
    15,663.72x = 172,260,345.60
  5. Step 5: Solve for x
    x = 172,260,345.60/15,663.72
  6. Step 6: Final answer
    x = 10,997.41

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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.