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Finding the Fourth Proportional to 8,959.79, 13,441.95 and 5,265.14

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Solution

The fourth proportional to 8,959.79, 13,441.95 and 5,265.14 is: 7,899.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.79 : 13,441.95 = 5,265.14 : x
  2. Step 2: Convert to fraction form
    8,959.79/13,441.95 = 5,265.14/x
  3. Step 3: Cross multiply
    8,959.79x = 13,441.95 × 5,265.14
  4. Step 4: Simplify right side
    8,959.79x = 70,773,681.41
  5. Step 5: Solve for x
    x = 70,773,681.41/8,959.79
  6. Step 6: Final answer
    x = 7,899.03

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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.