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Finding the Fourth Proportional to 8,587.58, 11,851.02 and 5,230.52

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Solution

The fourth proportional to 8,587.58, 11,851.02 and 5,230.52 is: 7,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.58 : 11,851.02 = 5,230.52 : x
  2. Step 2: Convert to fraction form
    8,587.58/11,851.02 = 5,230.52/x
  3. Step 3: Cross multiply
    8,587.58x = 11,851.02 × 5,230.52
  4. Step 4: Simplify right side
    8,587.58x = 61,986,997.13
  5. Step 5: Solve for x
    x = 61,986,997.13/8,587.58
  6. Step 6: Final answer
    x = 7,218.21

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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.