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Finding the Fourth Proportional to 12,374.88, 17,060.81 and 9,831.08

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Solution

The fourth proportional to 12,374.88, 17,060.81 and 9,831.08 is: 13,553.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.88 : 17,060.81 = 9,831.08 : x
  2. Step 2: Convert to fraction form
    12,374.88/17,060.81 = 9,831.08/x
  3. Step 3: Cross multiply
    12,374.88x = 17,060.81 × 9,831.08
  4. Step 4: Simplify right side
    12,374.88x = 167,726,102.67
  5. Step 5: Solve for x
    x = 167,726,102.67/12,374.88
  6. Step 6: Final answer
    x = 13,553.76

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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.