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Finding the Fourth Proportional to 5,308.61, 7,959.11 and 2,495.87

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Solution

The fourth proportional to 5,308.61, 7,959.11 and 2,495.87 is: 3,742.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.61 : 7,959.11 = 2,495.87 : x
  2. Step 2: Convert to fraction form
    5,308.61/7,959.11 = 2,495.87/x
  3. Step 3: Cross multiply
    5,308.61x = 7,959.11 × 2,495.87
  4. Step 4: Simplify right side
    5,308.61x = 19,864,851.60
  5. Step 5: Solve for x
    x = 19,864,851.60/5,308.61
  6. Step 6: Final answer
    x = 3,742.00

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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.