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Finding the Fourth Proportional to 32,404.68, 48,605.40 and 12,686.85

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Solution

The fourth proportional to 32,404.68, 48,605.40 and 12,686.85 is: 19,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,404.68 : 48,605.40 = 12,686.85 : x
  2. Step 2: Convert to fraction form
    32,404.68/48,605.40 = 12,686.85/x
  3. Step 3: Cross multiply
    32,404.68x = 48,605.40 × 12,686.85
  4. Step 4: Simplify right side
    32,404.68x = 616,649,418.99
  5. Step 5: Solve for x
    x = 616,649,418.99/32,404.68
  6. Step 6: Final answer
    x = 19,029.64

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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.