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Finding the Fourth Proportional to 70,073.40, 96,701.56 and 38,243

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Solution

The fourth proportional to 70,073.40, 96,701.56 and 38,243 is: 52,775.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,073.40 : 96,701.56 = 38,243 : x
  2. Step 2: Convert to fraction form
    70,073.40/96,701.56 = 38,243/x
  3. Step 3: Cross multiply
    70,073.40x = 96,701.56 × 38,243
  4. Step 4: Simplify right side
    70,073.40x = 3,698,157,759.08
  5. Step 5: Solve for x
    x = 3,698,157,759.08/70,073.40
  6. Step 6: Final answer
    x = 52,775.49

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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.