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Finding the Fourth Proportional to 7,967.90, 11,950.25 and 7,572.72

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Solution

The fourth proportional to 7,967.90, 11,950.25 and 7,572.72 is: 11,357.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.90 : 11,950.25 = 7,572.72 : x
  2. Step 2: Convert to fraction form
    7,967.90/11,950.25 = 7,572.72/x
  3. Step 3: Cross multiply
    7,967.90x = 11,950.25 × 7,572.72
  4. Step 4: Simplify right side
    7,967.90x = 90,495,897.18
  5. Step 5: Solve for x
    x = 90,495,897.18/7,967.90
  6. Step 6: Final answer
    x = 11,357.56

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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.