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Finding the Fourth Proportional to 7,882.35, 11,788.67 and 7,010.97

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Solution

The fourth proportional to 7,882.35, 11,788.67 and 7,010.97 is: 10,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.35 : 11,788.67 = 7,010.97 : x
  2. Step 2: Convert to fraction form
    7,882.35/11,788.67 = 7,010.97/x
  3. Step 3: Cross multiply
    7,882.35x = 11,788.67 × 7,010.97
  4. Step 4: Simplify right side
    7,882.35x = 82,650,011.71
  5. Step 5: Solve for x
    x = 82,650,011.71/7,882.35
  6. Step 6: Final answer
    x = 10,485.45

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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.