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Finding the Fourth Proportional to 8,587.76, 11,850.14 and 5,003.47

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Solution

The fourth proportional to 8,587.76, 11,850.14 and 5,003.47 is: 6,904.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.76 : 11,850.14 = 5,003.47 : x
  2. Step 2: Convert to fraction form
    8,587.76/11,850.14 = 5,003.47/x
  3. Step 3: Cross multiply
    8,587.76x = 11,850.14 × 5,003.47
  4. Step 4: Simplify right side
    8,587.76x = 59,291,847.31
  5. Step 5: Solve for x
    x = 59,291,847.31/8,587.76
  6. Step 6: Final answer
    x = 6,904.23

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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.