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Finding the Fourth Proportional to 6,258.62, 8,638.62 and 3,742.45

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Solution

The fourth proportional to 6,258.62, 8,638.62 and 3,742.45 is: 5,165.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,258.62 : 8,638.62 = 3,742.45 : x
  2. Step 2: Convert to fraction form
    6,258.62/8,638.62 = 3,742.45/x
  3. Step 3: Cross multiply
    6,258.62x = 8,638.62 × 3,742.45
  4. Step 4: Simplify right side
    6,258.62x = 32,329,603.42
  5. Step 5: Solve for x
    x = 32,329,603.42/6,258.62
  6. Step 6: Final answer
    x = 5,165.61

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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.