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Finding the Fourth Proportional to 70,277.95, 96,982.77 and 38,446.48

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Solution

The fourth proportional to 70,277.95, 96,982.77 and 38,446.48 is: 53,055.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,277.95 : 96,982.77 = 38,446.48 : x
  2. Step 2: Convert to fraction form
    70,277.95/96,982.77 = 38,446.48/x
  3. Step 3: Cross multiply
    70,277.95x = 96,982.77 × 38,446.48
  4. Step 4: Simplify right side
    70,277.95x = 3,728,646,127.15
  5. Step 5: Solve for x
    x = 3,728,646,127.15/70,277.95
  6. Step 6: Final answer
    x = 53,055.70

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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.