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Finding the Fourth Proportional to 19,332.86, 28,993.20 and 11,926.22

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Solution

The fourth proportional to 19,332.86, 28,993.20 and 11,926.22 is: 17,885.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,332.86 : 28,993.20 = 11,926.22 : x
  2. Step 2: Convert to fraction form
    19,332.86/28,993.20 = 11,926.22/x
  3. Step 3: Cross multiply
    19,332.86x = 28,993.20 × 11,926.22
  4. Step 4: Simplify right side
    19,332.86x = 345,779,281.70
  5. Step 5: Solve for x
    x = 345,779,281.70/19,332.86
  6. Step 6: Final answer
    x = 17,885.57

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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.