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Finding the Fourth Proportional to 4,247.76, 5,862 and 2,359.20

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Solution

The fourth proportional to 4,247.76, 5,862 and 2,359.20 is: 3,255.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,247.76 : 5,862 = 2,359.20 : x
  2. Step 2: Convert to fraction form
    4,247.76/5,862 = 2,359.20/x
  3. Step 3: Cross multiply
    4,247.76x = 5,862 × 2,359.20
  4. Step 4: Simplify right side
    4,247.76x = 13,829,630.40
  5. Step 5: Solve for x
    x = 13,829,630.40/4,247.76
  6. Step 6: Final answer
    x = 3,255.75

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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.