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Finding the Fourth Proportional to 61,322.73, 91,854.81 and 28,070.73

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Solution

The fourth proportional to 61,322.73, 91,854.81 and 28,070.73 is: 42,046.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,322.73 : 91,854.81 = 28,070.73 : x
  2. Step 2: Convert to fraction form
    61,322.73/91,854.81 = 28,070.73/x
  3. Step 3: Cross multiply
    61,322.73x = 91,854.81 × 28,070.73
  4. Step 4: Simplify right side
    61,322.73x = 2,578,431,570.71
  5. Step 5: Solve for x
    x = 2,578,431,570.71/61,322.73
  6. Step 6: Final answer
    x = 42,046.91

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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.