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Finding the Fourth Proportional to 27,319.78, 40,979.72 and 7,598.35

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Solution

The fourth proportional to 27,319.78, 40,979.72 and 7,598.35 is: 11,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,319.78 : 40,979.72 = 7,598.35 : x
  2. Step 2: Convert to fraction form
    27,319.78/40,979.72 = 7,598.35/x
  3. Step 3: Cross multiply
    27,319.78x = 40,979.72 × 7,598.35
  4. Step 4: Simplify right side
    27,319.78x = 311,378,255.46
  5. Step 5: Solve for x
    x = 311,378,255.46/27,319.78
  6. Step 6: Final answer
    x = 11,397.54

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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.