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Finding the Fourth Proportional to 48,812.80, 73,305.60 and 37,746.40

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Solution

The fourth proportional to 48,812.80, 73,305.60 and 37,746.40 is: 56,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,812.80 : 73,305.60 = 37,746.40 : x
  2. Step 2: Convert to fraction form
    48,812.80/73,305.60 = 37,746.40/x
  3. Step 3: Cross multiply
    48,812.80x = 73,305.60 × 37,746.40
  4. Step 4: Simplify right side
    48,812.80x = 2,767,022,499.84
  5. Step 5: Solve for x
    x = 2,767,022,499.84/48,812.80
  6. Step 6: Final answer
    x = 56,686.41

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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.