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Finding the Fourth Proportional to 70,505.92, 97,298.34 and 38,675.08

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Solution

The fourth proportional to 70,505.92, 97,298.34 and 38,675.08 is: 53,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,505.92 : 97,298.34 = 38,675.08 : x
  2. Step 2: Convert to fraction form
    70,505.92/97,298.34 = 38,675.08/x
  3. Step 3: Cross multiply
    70,505.92x = 97,298.34 × 38,675.08
  4. Step 4: Simplify right side
    70,505.92x = 3,763,021,083.37
  5. Step 5: Solve for x
    x = 3,763,021,083.37/70,505.92
  6. Step 6: Final answer
    x = 53,371.70

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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.