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Finding the Fourth Proportional to 52,681.92, 79,030.74 and 19,399.43

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Solution

The fourth proportional to 52,681.92, 79,030.74 and 19,399.43 is: 29,102.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,681.92 : 79,030.74 = 19,399.43 : x
  2. Step 2: Convert to fraction form
    52,681.92/79,030.74 = 19,399.43/x
  3. Step 3: Cross multiply
    52,681.92x = 79,030.74 × 19,399.43
  4. Step 4: Simplify right side
    52,681.92x = 1,533,150,913.32
  5. Step 5: Solve for x
    x = 1,533,150,913.32/52,681.92
  6. Step 6: Final answer
    x = 29,102.03

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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.