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Finding the Fourth Proportional to 9,191.63, 13,788.71 and 2,950.17

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Solution

The fourth proportional to 9,191.63, 13,788.71 and 2,950.17 is: 4,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.63 : 13,788.71 = 2,950.17 : x
  2. Step 2: Convert to fraction form
    9,191.63/13,788.71 = 2,950.17/x
  3. Step 3: Cross multiply
    9,191.63x = 13,788.71 × 2,950.17
  4. Step 4: Simplify right side
    9,191.63x = 40,679,023.83
  5. Step 5: Solve for x
    x = 40,679,023.83/9,191.63
  6. Step 6: Final answer
    x = 4,425.66

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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.