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Finding the Fourth Proportional to 40,645.90, 56,091.59 and 22,740.90

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Solution

The fourth proportional to 40,645.90, 56,091.59 and 22,740.90 is: 31,382.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,645.90 : 56,091.59 = 22,740.90 : x
  2. Step 2: Convert to fraction form
    40,645.90/56,091.59 = 22,740.90/x
  3. Step 3: Cross multiply
    40,645.90x = 56,091.59 × 22,740.90
  4. Step 4: Simplify right side
    40,645.90x = 1,275,573,239.03
  5. Step 5: Solve for x
    x = 1,275,573,239.03/40,645.90
  6. Step 6: Final answer
    x = 31,382.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.