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Finding the Fourth Proportional to 8,001.76, 11,040.78 and 4,856.20

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Solution

The fourth proportional to 8,001.76, 11,040.78 and 4,856.20 is: 6,700.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.76 : 11,040.78 = 4,856.20 : x
  2. Step 2: Convert to fraction form
    8,001.76/11,040.78 = 4,856.20/x
  3. Step 3: Cross multiply
    8,001.76x = 11,040.78 × 4,856.20
  4. Step 4: Simplify right side
    8,001.76x = 53,616,235.84
  5. Step 5: Solve for x
    x = 53,616,235.84/8,001.76
  6. Step 6: Final answer
    x = 6,700.56

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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.