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Finding the Fourth Proportional to 8,894.42, 13,338.76 and 4,947.56

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Solution

The fourth proportional to 8,894.42, 13,338.76 and 4,947.56 is: 7,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,894.42 : 13,338.76 = 4,947.56 : x
  2. Step 2: Convert to fraction form
    8,894.42/13,338.76 = 4,947.56/x
  3. Step 3: Cross multiply
    8,894.42x = 13,338.76 × 4,947.56
  4. Step 4: Simplify right side
    8,894.42x = 65,994,315.43
  5. Step 5: Solve for x
    x = 65,994,315.43/8,894.42
  6. Step 6: Final answer
    x = 7,419.74

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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.