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Finding the Fourth Proportional to 9,876.74, 14,820.95 and 3,641.11

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Solution

The fourth proportional to 9,876.74, 14,820.95 and 3,641.11 is: 5,463.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.74 : 14,820.95 = 3,641.11 : x
  2. Step 2: Convert to fraction form
    9,876.74/14,820.95 = 3,641.11/x
  3. Step 3: Cross multiply
    9,876.74x = 14,820.95 × 3,641.11
  4. Step 4: Simplify right side
    9,876.74x = 53,964,654.00
  5. Step 5: Solve for x
    x = 53,964,654.00/9,876.74
  6. Step 6: Final answer
    x = 5,463.81

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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.