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Finding the Fourth Proportional to 54,197.76, 74,786.67 and 31,230.93

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Solution

The fourth proportional to 54,197.76, 74,786.67 and 31,230.93 is: 43,095.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,197.76 : 74,786.67 = 31,230.93 : x
  2. Step 2: Convert to fraction form
    54,197.76/74,786.67 = 31,230.93/x
  3. Step 3: Cross multiply
    54,197.76x = 74,786.67 × 31,230.93
  4. Step 4: Simplify right side
    54,197.76x = 2,335,657,448.32
  5. Step 5: Solve for x
    x = 2,335,657,448.32/54,197.76
  6. Step 6: Final answer
    x = 43,095.09

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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.