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Finding the Fourth Proportional to 70,073.79, 96,700.49 and 38,242.92

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Solution

The fourth proportional to 70,073.79, 96,700.49 and 38,242.92 is: 52,774.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,073.79 : 96,700.49 = 38,242.92 : x
  2. Step 2: Convert to fraction form
    70,073.79/96,700.49 = 38,242.92/x
  3. Step 3: Cross multiply
    70,073.79x = 96,700.49 × 38,242.92
  4. Step 4: Simplify right side
    70,073.79x = 3,698,108,911.82
  5. Step 5: Solve for x
    x = 3,698,108,911.82/70,073.79
  6. Step 6: Final answer
    x = 52,774.49

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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.