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Finding the Fourth Proportional to 54,220.70, 76,064.50 and 54,220.70

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Solution

The fourth proportional to 54,220.70, 76,064.50 and 54,220.70 is: 76,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,220.70 : 76,064.50 = 54,220.70 : x
  2. Step 2: Convert to fraction form
    54,220.70/76,064.50 = 54,220.70/x
  3. Step 3: Cross multiply
    54,220.70x = 76,064.50 × 54,220.70
  4. Step 4: Simplify right side
    54,220.70x = 4,124,270,435.15
  5. Step 5: Solve for x
    x = 4,124,270,435.15/54,220.70
  6. Step 6: Final answer
    x = 76,064.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.