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Finding the Fourth Proportional to 70,752.29, 97,638.44 and 38,486.91

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Solution

The fourth proportional to 70,752.29, 97,638.44 and 38,486.91 is: 53,112.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,752.29 : 97,638.44 = 38,486.91 : x
  2. Step 2: Convert to fraction form
    70,752.29/97,638.44 = 38,486.91/x
  3. Step 3: Cross multiply
    70,752.29x = 97,638.44 × 38,486.91
  4. Step 4: Simplify right side
    70,752.29x = 3,757,801,660.39
  5. Step 5: Solve for x
    x = 3,757,801,660.39/70,752.29
  6. Step 6: Final answer
    x = 53,112.08

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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.