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Finding the Fourth Proportional to 70,763.26, 97,649.67 and 38,931.34

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Solution

The fourth proportional to 70,763.26, 97,649.67 and 38,931.34 is: 53,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,763.26 : 97,649.67 = 38,931.34 : x
  2. Step 2: Convert to fraction form
    70,763.26/97,649.67 = 38,931.34/x
  3. Step 3: Cross multiply
    70,763.26x = 97,649.67 × 38,931.34
  4. Step 4: Simplify right side
    70,763.26x = 3,801,632,503.66
  5. Step 5: Solve for x
    x = 3,801,632,503.66/70,763.26
  6. Step 6: Final answer
    x = 53,723.25

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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.