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Finding the Fourth Proportional to 6,314.47, 8,715.54 and 3,663.48

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Solution

The fourth proportional to 6,314.47, 8,715.54 and 3,663.48 is: 5,056.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,314.47 : 8,715.54 = 3,663.48 : x
  2. Step 2: Convert to fraction form
    6,314.47/8,715.54 = 3,663.48/x
  3. Step 3: Cross multiply
    6,314.47x = 8,715.54 × 3,663.48
  4. Step 4: Simplify right side
    6,314.47x = 31,929,206.48
  5. Step 5: Solve for x
    x = 31,929,206.48/6,314.47
  6. Step 6: Final answer
    x = 5,056.51

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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.