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Finding the Fourth Proportional to 65,062.93, 89,787.54 and 38,205.76

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Solution

The fourth proportional to 65,062.93, 89,787.54 and 38,205.76 is: 52,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,062.93 : 89,787.54 = 38,205.76 : x
  2. Step 2: Convert to fraction form
    65,062.93/89,787.54 = 38,205.76/x
  3. Step 3: Cross multiply
    65,062.93x = 89,787.54 × 38,205.76
  4. Step 4: Simplify right side
    65,062.93x = 3,430,401,204.23
  5. Step 5: Solve for x
    x = 3,430,401,204.23/65,062.93
  6. Step 6: Final answer
    x = 52,724.36

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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.