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Finding the Fourth Proportional to 54,453.70, 76,390.70 and 54,453.70

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Solution

The fourth proportional to 54,453.70, 76,390.70 and 54,453.70 is: 76,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,453.70 : 76,390.70 = 54,453.70 : x
  2. Step 2: Convert to fraction form
    54,453.70/76,390.70 = 54,453.70/x
  3. Step 3: Cross multiply
    54,453.70x = 76,390.70 × 54,453.70
  4. Step 4: Simplify right side
    54,453.70x = 4,159,756,260.59
  5. Step 5: Solve for x
    x = 4,159,756,260.59/54,453.70
  6. Step 6: Final answer
    x = 76,390.70

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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.