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Finding the Fourth Proportional to 10,615.90, 14,650.76 and 6,367.12

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Solution

The fourth proportional to 10,615.90, 14,650.76 and 6,367.12 is: 8,787.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.90 : 14,650.76 = 6,367.12 : x
  2. Step 2: Convert to fraction form
    10,615.90/14,650.76 = 6,367.12/x
  3. Step 3: Cross multiply
    10,615.90x = 14,650.76 × 6,367.12
  4. Step 4: Simplify right side
    10,615.90x = 93,283,193.99
  5. Step 5: Solve for x
    x = 93,283,193.99/10,615.90
  6. Step 6: Final answer
    x = 8,787.12

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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.