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Finding the Fourth Proportional to 48,732.80, 73,185.60 and 37,666.40

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Solution

The fourth proportional to 48,732.80, 73,185.60 and 37,666.40 is: 56,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,732.80 : 73,185.60 = 37,666.40 : x
  2. Step 2: Convert to fraction form
    48,732.80/73,185.60 = 37,666.40/x
  3. Step 3: Cross multiply
    48,732.80x = 73,185.60 × 37,666.40
  4. Step 4: Simplify right side
    48,732.80x = 2,756,638,083.84
  5. Step 5: Solve for x
    x = 2,756,638,083.84/48,732.80
  6. Step 6: Final answer
    x = 56,566.38

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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.