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Finding the Fourth Proportional to 48,462.40, 72,704.40 and 37,964.80

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Solution

The fourth proportional to 48,462.40, 72,704.40 and 37,964.80 is: 56,955.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,462.40 : 72,704.40 = 37,964.80 : x
  2. Step 2: Convert to fraction form
    48,462.40/72,704.40 = 37,964.80/x
  3. Step 3: Cross multiply
    48,462.40x = 72,704.40 × 37,964.80
  4. Step 4: Simplify right side
    48,462.40x = 2,760,208,005.12
  5. Step 5: Solve for x
    x = 2,760,208,005.12/48,462.40
  6. Step 6: Final answer
    x = 56,955.66

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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.