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Finding the Fourth Proportional to 48,991.64, 73,503.86 and 19,417.93

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Solution

The fourth proportional to 48,991.64, 73,503.86 and 19,417.93 is: 29,133.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,991.64 : 73,503.86 = 19,417.93 : x
  2. Step 2: Convert to fraction form
    48,991.64/73,503.86 = 19,417.93/x
  3. Step 3: Cross multiply
    48,991.64x = 73,503.86 × 19,417.93
  4. Step 4: Simplify right side
    48,991.64x = 1,427,292,527.36
  5. Step 5: Solve for x
    x = 1,427,292,527.36/48,991.64
  6. Step 6: Final answer
    x = 29,133.39

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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.