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Finding the Fourth Proportional to 70,684.90, 97,544.07 and 38,853.12

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Solution

The fourth proportional to 70,684.90, 97,544.07 and 38,853.12 is: 53,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,684.90 : 97,544.07 = 38,853.12 : x
  2. Step 2: Convert to fraction form
    70,684.90/97,544.07 = 38,853.12/x
  3. Step 3: Cross multiply
    70,684.90x = 97,544.07 × 38,853.12
  4. Step 4: Simplify right side
    70,684.90x = 3,789,891,383.38
  5. Step 5: Solve for x
    x = 3,789,891,383.38/70,684.90
  6. Step 6: Final answer
    x = 53,616.70

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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.