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Finding the Fourth Proportional to 70,585.11, 97,404.39 and 38,754.54

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Solution

The fourth proportional to 70,585.11, 97,404.39 and 38,754.54 is: 53,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,585.11 : 97,404.39 = 38,754.54 : x
  2. Step 2: Convert to fraction form
    70,585.11/97,404.39 = 38,754.54/x
  3. Step 3: Cross multiply
    70,585.11x = 97,404.39 × 38,754.54
  4. Step 4: Simplify right side
    70,585.11x = 3,774,862,328.43
  5. Step 5: Solve for x
    x = 3,774,862,328.43/70,585.11
  6. Step 6: Final answer
    x = 53,479.58

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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.