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Finding the Fourth Proportional to 9,261.98, 13,870.92 and 7,162.46

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Solution

The fourth proportional to 9,261.98, 13,870.92 and 7,162.46 is: 10,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.98 : 13,870.92 = 7,162.46 : x
  2. Step 2: Convert to fraction form
    9,261.98/13,870.92 = 7,162.46/x
  3. Step 3: Cross multiply
    9,261.98x = 13,870.92 × 7,162.46
  4. Step 4: Simplify right side
    9,261.98x = 99,349,909.66
  5. Step 5: Solve for x
    x = 99,349,909.66/9,261.98
  6. Step 6: Final answer
    x = 10,726.64

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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.