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Finding the Fourth Proportional to 9,245.70, 12,759.07 and 5,053.95

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Solution

The fourth proportional to 9,245.70, 12,759.07 and 5,053.95 is: 6,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,245.70 : 12,759.07 = 5,053.95 : x
  2. Step 2: Convert to fraction form
    9,245.70/12,759.07 = 5,053.95/x
  3. Step 3: Cross multiply
    9,245.70x = 12,759.07 × 5,053.95
  4. Step 4: Simplify right side
    9,245.70x = 64,483,701.83
  5. Step 5: Solve for x
    x = 64,483,701.83/9,245.70
  6. Step 6: Final answer
    x = 6,974.45

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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.