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Finding the Fourth Proportional to 68,022.80, 93,918.12 and 52,079.12

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Solution

The fourth proportional to 68,022.80, 93,918.12 and 52,079.12 is: 71,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,022.80 : 93,918.12 = 52,079.12 : x
  2. Step 2: Convert to fraction form
    68,022.80/93,918.12 = 52,079.12/x
  3. Step 3: Cross multiply
    68,022.80x = 93,918.12 × 52,079.12
  4. Step 4: Simplify right side
    68,022.80x = 4,891,173,041.65
  5. Step 5: Solve for x
    x = 4,891,173,041.65/68,022.80
  6. Step 6: Final answer
    x = 71,904.91

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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.