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Finding the Fourth Proportional to 54,970.70, 82,456.05 and 48,404.30

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Solution

The fourth proportional to 54,970.70, 82,456.05 and 48,404.30 is: 72,606.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,970.70 : 82,456.05 = 48,404.30 : x
  2. Step 2: Convert to fraction form
    54,970.70/82,456.05 = 48,404.30/x
  3. Step 3: Cross multiply
    54,970.70x = 82,456.05 × 48,404.30
  4. Step 4: Simplify right side
    54,970.70x = 3,991,227,381.02
  5. Step 5: Solve for x
    x = 3,991,227,381.02/54,970.70
  6. Step 6: Final answer
    x = 72,606.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.