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Finding the Fourth Proportional to 19,701.90, 29,552.85 and 8,009.10

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Solution

The fourth proportional to 19,701.90, 29,552.85 and 8,009.10 is: 12,013.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.90 : 29,552.85 = 8,009.10 : x
  2. Step 2: Convert to fraction form
    19,701.90/29,552.85 = 8,009.10/x
  3. Step 3: Cross multiply
    19,701.90x = 29,552.85 × 8,009.10
  4. Step 4: Simplify right side
    19,701.90x = 236,691,730.94
  5. Step 5: Solve for x
    x = 236,691,730.94/19,701.90
  6. Step 6: Final answer
    x = 12,013.65

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Similar ratio
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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.