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Finding the Fourth Proportional to 55,411.70, 83,000.55 and 36,700.70

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Solution

The fourth proportional to 55,411.70, 83,000.55 and 36,700.70 is: 54,973.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,411.70 : 83,000.55 = 36,700.70 : x
  2. Step 2: Convert to fraction form
    55,411.70/83,000.55 = 36,700.70/x
  3. Step 3: Cross multiply
    55,411.70x = 83,000.55 × 36,700.70
  4. Step 4: Simplify right side
    55,411.70x = 3,046,178,285.39
  5. Step 5: Solve for x
    x = 3,046,178,285.39/55,411.70
  6. Step 6: Final answer
    x = 54,973.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.