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Finding the Fourth Proportional to 12,470.88, 18,703.08 and 3,703.44

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Solution

The fourth proportional to 12,470.88, 18,703.08 and 3,703.44 is: 5,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.88 : 18,703.08 = 3,703.44 : x
  2. Step 2: Convert to fraction form
    12,470.88/18,703.08 = 3,703.44/x
  3. Step 3: Cross multiply
    12,470.88x = 18,703.08 × 3,703.44
  4. Step 4: Simplify right side
    12,470.88x = 69,265,734.60
  5. Step 5: Solve for x
    x = 69,265,734.60/12,470.88
  6. Step 6: Final answer
    x = 5,554.20

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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.