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Finding the Fourth Proportional to 27,057.72, 40,588.86 and 7,069.86

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Solution

The fourth proportional to 27,057.72, 40,588.86 and 7,069.86 is: 10,605.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,057.72 : 40,588.86 = 7,069.86 : x
  2. Step 2: Convert to fraction form
    27,057.72/40,588.86 = 7,069.86/x
  3. Step 3: Cross multiply
    27,057.72x = 40,588.86 × 7,069.86
  4. Step 4: Simplify right side
    27,057.72x = 286,957,557.76
  5. Step 5: Solve for x
    x = 286,957,557.76/27,057.72
  6. Step 6: Final answer
    x = 10,605.39

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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.