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Finding the Fourth Proportional to 4,672.10, 7,008.15 and 3,116.90

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Solution

The fourth proportional to 4,672.10, 7,008.15 and 3,116.90 is: 4,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,672.10 : 7,008.15 = 3,116.90 : x
  2. Step 2: Convert to fraction form
    4,672.10/7,008.15 = 3,116.90/x
  3. Step 3: Cross multiply
    4,672.10x = 7,008.15 × 3,116.90
  4. Step 4: Simplify right side
    4,672.10x = 21,843,702.74
  5. Step 5: Solve for x
    x = 21,843,702.74/4,672.10
  6. Step 6: Final answer
    x = 4,675.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.