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Finding the Fourth Proportional to 70,495.95, 97,287.98 and 38,667.81

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Solution

The fourth proportional to 70,495.95, 97,287.98 and 38,667.81 is: 53,363.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,495.95 : 97,287.98 = 38,667.81 : x
  2. Step 2: Convert to fraction form
    70,495.95/97,287.98 = 38,667.81/x
  3. Step 3: Cross multiply
    70,495.95x = 97,287.98 × 38,667.81
  4. Step 4: Simplify right side
    70,495.95x = 3,761,912,932.58
  5. Step 5: Solve for x
    x = 3,761,912,932.58/70,495.95
  6. Step 6: Final answer
    x = 53,363.53

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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.