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Finding the Fourth Proportional to 40,497.78, 55,891.80 and 23,730.78

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Solution

The fourth proportional to 40,497.78, 55,891.80 and 23,730.78 is: 32,751.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,497.78 : 55,891.80 = 23,730.78 : x
  2. Step 2: Convert to fraction form
    40,497.78/55,891.80 = 23,730.78/x
  3. Step 3: Cross multiply
    40,497.78x = 55,891.80 × 23,730.78
  4. Step 4: Simplify right side
    40,497.78x = 1,326,356,009.60
  5. Step 5: Solve for x
    x = 1,326,356,009.60/40,497.78
  6. Step 6: Final answer
    x = 32,751.33

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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.