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Finding the Fourth Proportional to 14,889.62, 22,337.32 and 7,971.86

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Solution

The fourth proportional to 14,889.62, 22,337.32 and 7,971.86 is: 11,959.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.62 : 22,337.32 = 7,971.86 : x
  2. Step 2: Convert to fraction form
    14,889.62/22,337.32 = 7,971.86/x
  3. Step 3: Cross multiply
    14,889.62x = 22,337.32 × 7,971.86
  4. Step 4: Simplify right side
    14,889.62x = 178,069,987.82
  5. Step 5: Solve for x
    x = 178,069,987.82/14,889.62
  6. Step 6: Final answer
    x = 11,959.34

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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.