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Finding the Fourth Proportional to 54,683.10, 76,763.70 and 54,683.10

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Solution

The fourth proportional to 54,683.10, 76,763.70 and 54,683.10 is: 76,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,683.10 : 76,763.70 = 54,683.10 : x
  2. Step 2: Convert to fraction form
    54,683.10/76,763.70 = 54,683.10/x
  3. Step 3: Cross multiply
    54,683.10x = 76,763.70 × 54,683.10
  4. Step 4: Simplify right side
    54,683.10x = 4,197,677,083.47
  5. Step 5: Solve for x
    x = 4,197,677,083.47/54,683.10
  6. Step 6: Final answer
    x = 76,763.70

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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.