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Finding the Fourth Proportional to 10,009.76, 15,009.50 and 5,850.68

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Solution

The fourth proportional to 10,009.76, 15,009.50 and 5,850.68 is: 8,773.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,009.76 : 15,009.50 = 5,850.68 : x
  2. Step 2: Convert to fraction form
    10,009.76/15,009.50 = 5,850.68/x
  3. Step 3: Cross multiply
    10,009.76x = 15,009.50 × 5,850.68
  4. Step 4: Simplify right side
    10,009.76x = 87,815,781.46
  5. Step 5: Solve for x
    x = 87,815,781.46/10,009.76
  6. Step 6: Final answer
    x = 8,773.02

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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.