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Finding the Fourth Proportional to 70,716.76, 97,591.74 and 38,888.44

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Solution

The fourth proportional to 70,716.76, 97,591.74 and 38,888.44 is: 53,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,716.76 : 97,591.74 = 38,888.44 : x
  2. Step 2: Convert to fraction form
    70,716.76/97,591.74 = 38,888.44/x
  3. Step 3: Cross multiply
    70,716.76x = 97,591.74 × 38,888.44
  4. Step 4: Simplify right side
    70,716.76x = 3,795,190,525.49
  5. Step 5: Solve for x
    x = 3,795,190,525.49/70,716.76
  6. Step 6: Final answer
    x = 53,667.48

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Half scale
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Double scale
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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.