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Finding the Fourth Proportional to 6,998.79, 9,655.56 and 4,873.76

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Solution

The fourth proportional to 6,998.79, 9,655.56 and 4,873.76 is: 6,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998.79 : 9,655.56 = 4,873.76 : x
  2. Step 2: Convert to fraction form
    6,998.79/9,655.56 = 4,873.76/x
  3. Step 3: Cross multiply
    6,998.79x = 9,655.56 × 4,873.76
  4. Step 4: Simplify right side
    6,998.79x = 47,058,833.83
  5. Step 5: Solve for x
    x = 47,058,833.83/6,998.79
  6. Step 6: Final answer
    x = 6,723.85

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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.