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Finding the Fourth Proportional to 52,990.74, 79,497.54 and 17,929.62

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Solution

The fourth proportional to 52,990.74, 79,497.54 and 17,929.62 is: 26,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,990.74 : 79,497.54 = 17,929.62 : x
  2. Step 2: Convert to fraction form
    52,990.74/79,497.54 = 17,929.62/x
  3. Step 3: Cross multiply
    52,990.74x = 79,497.54 × 17,929.62
  4. Step 4: Simplify right side
    52,990.74x = 1,425,360,683.13
  5. Step 5: Solve for x
    x = 1,425,360,683.13/52,990.74
  6. Step 6: Final answer
    x = 26,898.30

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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.