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Finding the Fourth Proportional to 40,396.32, 55,746.54 and 22,490.24

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Solution

The fourth proportional to 40,396.32, 55,746.54 and 22,490.24 is: 31,036.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,396.32 : 55,746.54 = 22,490.24 : x
  2. Step 2: Convert to fraction form
    40,396.32/55,746.54 = 22,490.24/x
  3. Step 3: Cross multiply
    40,396.32x = 55,746.54 × 22,490.24
  4. Step 4: Simplify right side
    40,396.32x = 1,253,752,785.04
  5. Step 5: Solve for x
    x = 1,253,752,785.04/40,396.32
  6. Step 6: Final answer
    x = 31,036.31

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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.