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Finding the Fourth Proportional to 67,479.51, 93,133.80 and 40,257.29

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Solution

The fourth proportional to 67,479.51, 93,133.80 and 40,257.29 is: 55,562.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,479.51 : 93,133.80 = 40,257.29 : x
  2. Step 2: Convert to fraction form
    67,479.51/93,133.80 = 40,257.29/x
  3. Step 3: Cross multiply
    67,479.51x = 93,133.80 × 40,257.29
  4. Step 4: Simplify right side
    67,479.51x = 3,749,313,929.73
  5. Step 5: Solve for x
    x = 3,749,313,929.73/67,479.51
  6. Step 6: Final answer
    x = 55,562.26

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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.