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Finding the Fourth Proportional to 54,951.60, 77,107.20 and 54,951.60

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Solution

The fourth proportional to 54,951.60, 77,107.20 and 54,951.60 is: 77,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,951.60 : 77,107.20 = 54,951.60 : x
  2. Step 2: Convert to fraction form
    54,951.60/77,107.20 = 54,951.60/x
  3. Step 3: Cross multiply
    54,951.60x = 77,107.20 × 54,951.60
  4. Step 4: Simplify right side
    54,951.60x = 4,237,164,011.52
  5. Step 5: Solve for x
    x = 4,237,164,011.52/54,951.60
  6. Step 6: Final answer
    x = 77,107.20

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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.