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Finding the Fourth Proportional to 70,357.60, 97,093.28 and 38,528.48

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Solution

The fourth proportional to 70,357.60, 97,093.28 and 38,528.48 is: 53,169.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,357.60 : 97,093.28 = 38,528.48 : x
  2. Step 2: Convert to fraction form
    70,357.60/97,093.28 = 38,528.48/x
  3. Step 3: Cross multiply
    70,357.60x = 97,093.28 × 38,528.48
  4. Step 4: Simplify right side
    70,357.60x = 3,740,856,496.61
  5. Step 5: Solve for x
    x = 3,740,856,496.61/70,357.60
  6. Step 6: Final answer
    x = 53,169.19

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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.