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Finding the Fourth Proportional to 27,039.42, 40,560.68 and 7,319.57

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Solution

The fourth proportional to 27,039.42, 40,560.68 and 7,319.57 is: 10,979.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,039.42 : 40,560.68 = 7,319.57 : x
  2. Step 2: Convert to fraction form
    27,039.42/40,560.68 = 7,319.57/x
  3. Step 3: Cross multiply
    27,039.42x = 40,560.68 × 7,319.57
  4. Step 4: Simplify right side
    27,039.42x = 296,886,552.00
  5. Step 5: Solve for x
    x = 296,886,552.00/27,039.42
  6. Step 6: Final answer
    x = 10,979.77

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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.