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Finding the Fourth Proportional to 7,171.08, 9,898.73 and 6,158.72

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Solution

The fourth proportional to 7,171.08, 9,898.73 and 6,158.72 is: 8,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.08 : 9,898.73 = 6,158.72 : x
  2. Step 2: Convert to fraction form
    7,171.08/9,898.73 = 6,158.72/x
  3. Step 3: Cross multiply
    7,171.08x = 9,898.73 × 6,158.72
  4. Step 4: Simplify right side
    7,171.08x = 60,963,472.33
  5. Step 5: Solve for x
    x = 60,963,472.33/7,171.08
  6. Step 6: Final answer
    x = 8,501.30

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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.