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Finding the Fourth Proportional to 23,009.78, 34,508.97 and 9,860.66

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Solution

The fourth proportional to 23,009.78, 34,508.97 and 9,860.66 is: 14,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,009.78 : 34,508.97 = 9,860.66 : x
  2. Step 2: Convert to fraction form
    23,009.78/34,508.97 = 9,860.66/x
  3. Step 3: Cross multiply
    23,009.78x = 34,508.97 × 9,860.66
  4. Step 4: Simplify right side
    23,009.78x = 340,281,220.12
  5. Step 5: Solve for x
    x = 340,281,220.12/23,009.78
  6. Step 6: Final answer
    x = 14,788.55

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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.