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Finding the Fourth Proportional to 8,898.87, 12,266.31 and 7,007.46

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Solution

The fourth proportional to 8,898.87, 12,266.31 and 7,007.46 is: 9,659.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.87 : 12,266.31 = 7,007.46 : x
  2. Step 2: Convert to fraction form
    8,898.87/12,266.31 = 7,007.46/x
  3. Step 3: Cross multiply
    8,898.87x = 12,266.31 × 7,007.46
  4. Step 4: Simplify right side
    8,898.87x = 85,955,676.67
  5. Step 5: Solve for x
    x = 85,955,676.67/8,898.87
  6. Step 6: Final answer
    x = 9,659.17

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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.