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Finding the Fourth Proportional to 15,010.61, 20,714.43 and 8,296.35

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Solution

The fourth proportional to 15,010.61, 20,714.43 and 8,296.35 is: 11,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.61 : 20,714.43 = 8,296.35 : x
  2. Step 2: Convert to fraction form
    15,010.61/20,714.43 = 8,296.35/x
  3. Step 3: Cross multiply
    15,010.61x = 20,714.43 × 8,296.35
  4. Step 4: Simplify right side
    15,010.61x = 171,854,161.33
  5. Step 5: Solve for x
    x = 171,854,161.33/15,010.61
  6. Step 6: Final answer
    x = 11,448.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.