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Finding the Fourth Proportional to 67,365.72, 92,964.66 and 38,687.25

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Solution

The fourth proportional to 67,365.72, 92,964.66 and 38,687.25 is: 53,388.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,365.72 : 92,964.66 = 38,687.25 : x
  2. Step 2: Convert to fraction form
    67,365.72/92,964.66 = 38,687.25/x
  3. Step 3: Cross multiply
    67,365.72x = 92,964.66 × 38,687.25
  4. Step 4: Simplify right side
    67,365.72x = 3,596,547,042.59
  5. Step 5: Solve for x
    x = 3,596,547,042.59/67,365.72
  6. Step 6: Final answer
    x = 53,388.39

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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.