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Finding the Fourth Proportional to 6,473.55, 8,929.65 and 4,082.55

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Solution

The fourth proportional to 6,473.55, 8,929.65 and 4,082.55 is: 5,631.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,473.55 : 8,929.65 = 4,082.55 : x
  2. Step 2: Convert to fraction form
    6,473.55/8,929.65 = 4,082.55/x
  3. Step 3: Cross multiply
    6,473.55x = 8,929.65 × 4,082.55
  4. Step 4: Simplify right side
    6,473.55x = 36,455,742.61
  5. Step 5: Solve for x
    x = 36,455,742.61/6,473.55
  6. Step 6: Final answer
    x = 5,631.49

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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.