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Finding the Fourth Proportional to 7,570.73, 11,357.98 and 7,445.16

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Solution

The fourth proportional to 7,570.73, 11,357.98 and 7,445.16 is: 11,169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,570.73 : 11,357.98 = 7,445.16 : x
  2. Step 2: Convert to fraction form
    7,570.73/11,357.98 = 7,445.16/x
  3. Step 3: Cross multiply
    7,570.73x = 11,357.98 × 7,445.16
  4. Step 4: Simplify right side
    7,570.73x = 84,561,921.59
  5. Step 5: Solve for x
    x = 84,561,921.59/7,570.73
  6. Step 6: Final answer
    x = 11,169.59

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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.