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Finding the Fourth Proportional to 48,993.64, 73,506.86 and 19,419.93

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Solution

The fourth proportional to 48,993.64, 73,506.86 and 19,419.93 is: 29,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,993.64 : 73,506.86 = 19,419.93 : x
  2. Step 2: Convert to fraction form
    48,993.64/73,506.86 = 19,419.93/x
  3. Step 3: Cross multiply
    48,993.64x = 73,506.86 × 19,419.93
  4. Step 4: Simplify right side
    48,993.64x = 1,427,498,075.72
  5. Step 5: Solve for x
    x = 1,427,498,075.72/48,993.64
  6. Step 6: Final answer
    x = 29,136.40

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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.