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Finding the Fourth Proportional to 10,842.81, 14,963.08 and 5,874.81

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Solution

The fourth proportional to 10,842.81, 14,963.08 and 5,874.81 is: 8,107.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,842.81 : 14,963.08 = 5,874.81 : x
  2. Step 2: Convert to fraction form
    10,842.81/14,963.08 = 5,874.81/x
  3. Step 3: Cross multiply
    10,842.81x = 14,963.08 × 5,874.81
  4. Step 4: Simplify right side
    10,842.81x = 87,905,296.77
  5. Step 5: Solve for x
    x = 87,905,296.77/10,842.81
  6. Step 6: Final answer
    x = 8,107.24

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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.