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Finding the Fourth Proportional to 70,608.92, 97,440.19 and 38,777.82

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Solution

The fourth proportional to 70,608.92, 97,440.19 and 38,777.82 is: 53,513.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,608.92 : 97,440.19 = 38,777.82 : x
  2. Step 2: Convert to fraction form
    70,608.92/97,440.19 = 38,777.82/x
  3. Step 3: Cross multiply
    70,608.92x = 97,440.19 × 38,777.82
  4. Step 4: Simplify right side
    70,608.92x = 3,778,518,148.59
  5. Step 5: Solve for x
    x = 3,778,518,148.59/70,608.92
  6. Step 6: Final answer
    x = 53,513.33

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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.