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Finding the Fourth Proportional to 67,668.79, 93,383.12 and 37,456.20

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Solution

The fourth proportional to 67,668.79, 93,383.12 and 37,456.20 is: 51,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,668.79 : 93,383.12 = 37,456.20 : x
  2. Step 2: Convert to fraction form
    67,668.79/93,383.12 = 37,456.20/x
  3. Step 3: Cross multiply
    67,668.79x = 93,383.12 × 37,456.20
  4. Step 4: Simplify right side
    67,668.79x = 3,497,776,819.34
  5. Step 5: Solve for x
    x = 3,497,776,819.34/67,668.79
  6. Step 6: Final answer
    x = 51,689.66

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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.