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Finding the Fourth Proportional to 70,362.95, 97,097.95 and 38,531.30

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Solution

The fourth proportional to 70,362.95, 97,097.95 and 38,531.30 is: 53,171.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,362.95 : 97,097.95 = 38,531.30 : x
  2. Step 2: Convert to fraction form
    70,362.95/97,097.95 = 38,531.30/x
  3. Step 3: Cross multiply
    70,362.95x = 97,097.95 × 38,531.30
  4. Step 4: Simplify right side
    70,362.95x = 3,741,310,240.84
  5. Step 5: Solve for x
    x = 3,741,310,240.84/70,362.95
  6. Step 6: Final answer
    x = 53,171.59

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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.