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Finding the Fourth Proportional to 54,704.40, 76,411.20 and 54,704.40

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Solution

The fourth proportional to 54,704.40, 76,411.20 and 54,704.40 is: 76,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,704.40 : 76,411.20 = 54,704.40 : x
  2. Step 2: Convert to fraction form
    54,704.40/76,411.20 = 54,704.40/x
  3. Step 3: Cross multiply
    54,704.40x = 76,411.20 × 54,704.40
  4. Step 4: Simplify right side
    54,704.40x = 4,180,028,849.28
  5. Step 5: Solve for x
    x = 4,180,028,849.28/54,704.40
  6. Step 6: Final answer
    x = 76,411.20

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Half scale
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Double scale
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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.