Home / 12,575.93-17,329.75-8,980.74

Finding the Fourth Proportional to 12,575.93, 17,329.75 and 8,980.74

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Solution

The fourth proportional to 12,575.93, 17,329.75 and 8,980.74 is: 12,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.93 : 17,329.75 = 8,980.74 : x
  2. Step 2: Convert to fraction form
    12,575.93/17,329.75 = 8,980.74/x
  3. Step 3: Cross multiply
    12,575.93x = 17,329.75 × 8,980.74
  4. Step 4: Simplify right side
    12,575.93x = 155,633,956.56
  5. Step 5: Solve for x
    x = 155,633,956.56/12,575.93
  6. Step 6: Final answer
    x = 12,375.55

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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.