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Finding the Fourth Proportional to 67,678.92, 93,391.12 and 37,464.32

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Solution

The fourth proportional to 67,678.92, 93,391.12 and 37,464.32 is: 51,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,678.92 : 93,391.12 = 37,464.32 : x
  2. Step 2: Convert to fraction form
    67,678.92/93,391.12 = 37,464.32/x
  3. Step 3: Cross multiply
    67,678.92x = 93,391.12 × 37,464.32
  4. Step 4: Simplify right side
    67,678.92x = 3,498,834,804.84
  5. Step 5: Solve for x
    x = 3,498,834,804.84/67,678.92
  6. Step 6: Final answer
    x = 51,697.56

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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.