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Finding the Fourth Proportional to 27,919, 42,064.74 and 25,253.64

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Solution

The fourth proportional to 27,919, 42,064.74 and 25,253.64 is: 38,048.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,919 : 42,064.74 = 25,253.64 : x
  2. Step 2: Convert to fraction form
    27,919/42,064.74 = 25,253.64/x
  3. Step 3: Cross multiply
    27,919x = 42,064.74 × 25,253.64
  4. Step 4: Simplify right side
    27,919x = 1,062,287,800.65
  5. Step 5: Solve for x
    x = 1,062,287,800.65/27,919
  6. Step 6: Final answer
    x = 38,048.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.