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Finding the Fourth Proportional to 9,007.88, 13,513.98 and 2,851.88

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Solution

The fourth proportional to 9,007.88, 13,513.98 and 2,851.88 is: 4,278.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,007.88 : 13,513.98 = 2,851.88 : x
  2. Step 2: Convert to fraction form
    9,007.88/13,513.98 = 2,851.88/x
  3. Step 3: Cross multiply
    9,007.88x = 13,513.98 × 2,851.88
  4. Step 4: Simplify right side
    9,007.88x = 38,540,249.28
  5. Step 5: Solve for x
    x = 38,540,249.28/9,007.88
  6. Step 6: Final answer
    x = 4,278.50

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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.