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Finding the Fourth Proportional to 8,950.76, 12,352.16 and 4,972.25

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Solution

The fourth proportional to 8,950.76, 12,352.16 and 4,972.25 is: 6,861.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.76 : 12,352.16 = 4,972.25 : x
  2. Step 2: Convert to fraction form
    8,950.76/12,352.16 = 4,972.25/x
  3. Step 3: Cross multiply
    8,950.76x = 12,352.16 × 4,972.25
  4. Step 4: Simplify right side
    8,950.76x = 61,417,940.94
  5. Step 5: Solve for x
    x = 61,417,940.94/8,950.76
  6. Step 6: Final answer
    x = 6,861.76

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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.