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Finding the Fourth Proportional to 74,561.69, 111,838.80 and 27,810.92

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Solution

The fourth proportional to 74,561.69, 111,838.80 and 27,810.92 is: 41,714.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,561.69 : 111,838.80 = 27,810.92 : x
  2. Step 2: Convert to fraction form
    74,561.69/111,838.80 = 27,810.92/x
  3. Step 3: Cross multiply
    74,561.69x = 111,838.80 × 27,810.92
  4. Step 4: Simplify right side
    74,561.69x = 3,110,339,919.70
  5. Step 5: Solve for x
    x = 3,110,339,919.70/74,561.69
  6. Step 6: Final answer
    x = 41,714.99

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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.