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Finding the Fourth Proportional to 9,952.81, 13,739.96 and 9,410.11

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Solution

The fourth proportional to 9,952.81, 13,739.96 and 9,410.11 is: 12,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,952.81 : 13,739.96 = 9,410.11 : x
  2. Step 2: Convert to fraction form
    9,952.81/13,739.96 = 9,410.11/x
  3. Step 3: Cross multiply
    9,952.81x = 13,739.96 × 9,410.11
  4. Step 4: Simplify right side
    9,952.81x = 129,294,524.17
  5. Step 5: Solve for x
    x = 129,294,524.17/9,952.81
  6. Step 6: Final answer
    x = 12,990.76

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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.