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Finding the Fourth Proportional to 11,355.12, 15,671.94 and 9,463.83

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Solution

The fourth proportional to 11,355.12, 15,671.94 and 9,463.83 is: 13,061.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.12 : 15,671.94 = 9,463.83 : x
  2. Step 2: Convert to fraction form
    11,355.12/15,671.94 = 9,463.83/x
  3. Step 3: Cross multiply
    11,355.12x = 15,671.94 × 9,463.83
  4. Step 4: Simplify right side
    11,355.12x = 148,316,575.93
  5. Step 5: Solve for x
    x = 148,316,575.93/11,355.12
  6. Step 6: Final answer
    x = 13,061.65

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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.