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Finding the Fourth Proportional to 8,953.68, 12,355.34 and 4,974.56

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Solution

The fourth proportional to 8,953.68, 12,355.34 and 4,974.56 is: 6,864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.68 : 12,355.34 = 4,974.56 : x
  2. Step 2: Convert to fraction form
    8,953.68/12,355.34 = 4,974.56/x
  3. Step 3: Cross multiply
    8,953.68x = 12,355.34 × 4,974.56
  4. Step 4: Simplify right side
    8,953.68x = 61,462,380.15
  5. Step 5: Solve for x
    x = 61,462,380.15/8,953.68
  6. Step 6: Final answer
    x = 6,864.48

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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.