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Finding the Fourth Proportional to 27,290.56, 40,930.72 and 7,570.56

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Solution

The fourth proportional to 27,290.56, 40,930.72 and 7,570.56 is: 11,354.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,290.56 : 40,930.72 = 7,570.56 : x
  2. Step 2: Convert to fraction form
    27,290.56/40,930.72 = 7,570.56/x
  3. Step 3: Cross multiply
    27,290.56x = 40,930.72 × 7,570.56
  4. Step 4: Simplify right side
    27,290.56x = 309,868,471.60
  5. Step 5: Solve for x
    x = 309,868,471.60/27,290.56
  6. Step 6: Final answer
    x = 11,354.42

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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.