Home / 70,133.20-96,783.10-38,302.09

Finding the Fourth Proportional to 70,133.20, 96,783.10 and 38,302.09

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Solution

The fourth proportional to 70,133.20, 96,783.10 and 38,302.09 is: 52,856.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,133.20 : 96,783.10 = 38,302.09 : x
  2. Step 2: Convert to fraction form
    70,133.20/96,783.10 = 38,302.09/x
  3. Step 3: Cross multiply
    70,133.20x = 96,783.10 × 38,302.09
  4. Step 4: Simplify right side
    70,133.20x = 3,706,994,668.97
  5. Step 5: Solve for x
    x = 3,706,994,668.97/70,133.20
  6. Step 6: Final answer
    x = 52,856.49

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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.