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Finding the Fourth Proportional to 8,798.91, 12,142.15 and 5,260.02

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Solution

The fourth proportional to 8,798.91, 12,142.15 and 5,260.02 is: 7,258.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.91 : 12,142.15 = 5,260.02 : x
  2. Step 2: Convert to fraction form
    8,798.91/12,142.15 = 5,260.02/x
  3. Step 3: Cross multiply
    8,798.91x = 12,142.15 × 5,260.02
  4. Step 4: Simplify right side
    8,798.91x = 63,867,951.84
  5. Step 5: Solve for x
    x = 63,867,951.84/8,798.91
  6. Step 6: Final answer
    x = 7,258.62

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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.