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Finding the Fourth Proportional to 9,397.88, 12,975.05 and 5,866.28

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Solution

The fourth proportional to 9,397.88, 12,975.05 and 5,866.28 is: 8,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,397.88 : 12,975.05 = 5,866.28 : x
  2. Step 2: Convert to fraction form
    9,397.88/12,975.05 = 5,866.28/x
  3. Step 3: Cross multiply
    9,397.88x = 12,975.05 × 5,866.28
  4. Step 4: Simplify right side
    9,397.88x = 76,115,276.31
  5. Step 5: Solve for x
    x = 76,115,276.31/9,397.88
  6. Step 6: Final answer
    x = 8,099.20

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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.