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Finding the Fourth Proportional to 19,919.03, 29,871.56 and 5,875.32

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Solution

The fourth proportional to 19,919.03, 29,871.56 and 5,875.32 is: 8,810.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.03 : 29,871.56 = 5,875.32 : x
  2. Step 2: Convert to fraction form
    19,919.03/29,871.56 = 5,875.32/x
  3. Step 3: Cross multiply
    19,919.03x = 29,871.56 × 5,875.32
  4. Step 4: Simplify right side
    19,919.03x = 175,504,988.59
  5. Step 5: Solve for x
    x = 175,504,988.59/19,919.03
  6. Step 6: Final answer
    x = 8,810.92

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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.