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Finding the Fourth Proportional to 8,950.69, 12,352.34 and 4,972.17

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Solution

The fourth proportional to 8,950.69, 12,352.34 and 4,972.17 is: 6,861.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.69 : 12,352.34 = 4,972.17 : x
  2. Step 2: Convert to fraction form
    8,950.69/12,352.34 = 4,972.17/x
  3. Step 3: Cross multiply
    8,950.69x = 12,352.34 × 4,972.17
  4. Step 4: Simplify right side
    8,950.69x = 61,417,909.52
  5. Step 5: Solve for x
    x = 61,417,909.52/8,950.69
  6. Step 6: Final answer
    x = 6,861.81

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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.