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Finding the Fourth Proportional to 52,680.58, 79,028.74 and 19,398.08

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Solution

The fourth proportional to 52,680.58, 79,028.74 and 19,398.08 is: 29,100.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,680.58 : 79,028.74 = 19,398.08 : x
  2. Step 2: Convert to fraction form
    52,680.58/79,028.74 = 19,398.08/x
  3. Step 3: Cross multiply
    52,680.58x = 79,028.74 × 19,398.08
  4. Step 4: Simplify right side
    52,680.58x = 1,533,005,820.82
  5. Step 5: Solve for x
    x = 1,533,005,820.82/52,680.58
  6. Step 6: Final answer
    x = 29,100.02

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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.