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Finding the Fourth Proportional to 59,445, 89,104.66 and 21,981.02

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Solution

The fourth proportional to 59,445, 89,104.66 and 21,981.02 is: 32,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,445 : 89,104.66 = 21,981.02 : x
  2. Step 2: Convert to fraction form
    59,445/89,104.66 = 21,981.02/x
  3. Step 3: Cross multiply
    59,445x = 89,104.66 × 21,981.02
  4. Step 4: Simplify right side
    59,445x = 1,958,610,813.08
  5. Step 5: Solve for x
    x = 1,958,610,813.08/59,445
  6. Step 6: Final answer
    x = 32,948.29

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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.