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Finding the Fourth Proportional to 6,248.34, 8,622.72 and 3,415.65

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Solution

The fourth proportional to 6,248.34, 8,622.72 and 3,415.65 is: 4,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,248.34 : 8,622.72 = 3,415.65 : x
  2. Step 2: Convert to fraction form
    6,248.34/8,622.72 = 3,415.65/x
  3. Step 3: Cross multiply
    6,248.34x = 8,622.72 × 3,415.65
  4. Step 4: Simplify right side
    6,248.34x = 29,452,193.57
  5. Step 5: Solve for x
    x = 29,452,193.57/6,248.34
  6. Step 6: Final answer
    x = 4,713.60

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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.