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Finding the Fourth Proportional to 70,856.46, 97,777.71 and 39,024.54

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Solution

The fourth proportional to 70,856.46, 97,777.71 and 39,024.54 is: 53,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,856.46 : 97,777.71 = 39,024.54 : x
  2. Step 2: Convert to fraction form
    70,856.46/97,777.71 = 39,024.54/x
  3. Step 3: Cross multiply
    70,856.46x = 97,777.71 × 39,024.54
  4. Step 4: Simplify right side
    70,856.46x = 3,815,730,155.00
  5. Step 5: Solve for x
    x = 3,815,730,155.00/70,856.46
  6. Step 6: Final answer
    x = 53,851.55

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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.