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Finding the Fourth Proportional to 70,394.52, 97,145.28 and 38,564.76

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Solution

The fourth proportional to 70,394.52, 97,145.28 and 38,564.76 is: 53,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,394.52 : 97,145.28 = 38,564.76 : x
  2. Step 2: Convert to fraction form
    70,394.52/97,145.28 = 38,564.76/x
  3. Step 3: Cross multiply
    70,394.52x = 97,145.28 × 38,564.76
  4. Step 4: Simplify right side
    70,394.52x = 3,746,384,408.33
  5. Step 5: Solve for x
    x = 3,746,384,408.33/70,394.52
  6. Step 6: Final answer
    x = 53,219.83

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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.