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Finding the Fourth Proportional to 69,579, 104,417.10 and 28,026

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Solution

The fourth proportional to 69,579, 104,417.10 and 28,026 is: 42,058.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,579 : 104,417.10 = 28,026 : x
  2. Step 2: Convert to fraction form
    69,579/104,417.10 = 28,026/x
  3. Step 3: Cross multiply
    69,579x = 104,417.10 × 28,026
  4. Step 4: Simplify right side
    69,579x = 2,926,393,644.60
  5. Step 5: Solve for x
    x = 2,926,393,644.60/69,579
  6. Step 6: Final answer
    x = 42,058.58

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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.