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Finding the Fourth Proportional to 6,197.76, 8,549.74 and 3,957.28

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Solution

The fourth proportional to 6,197.76, 8,549.74 and 3,957.28 is: 5,459.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,197.76 : 8,549.74 = 3,957.28 : x
  2. Step 2: Convert to fraction form
    6,197.76/8,549.74 = 3,957.28/x
  3. Step 3: Cross multiply
    6,197.76x = 8,549.74 × 3,957.28
  4. Step 4: Simplify right side
    6,197.76x = 33,833,715.11
  5. Step 5: Solve for x
    x = 33,833,715.11/6,197.76
  6. Step 6: Final answer
    x = 5,459.02

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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.