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Finding the Fourth Proportional to 59,898.48, 89,855.82 and 20,445

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Solution

The fourth proportional to 59,898.48, 89,855.82 and 20,445 is: 30,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,898.48 : 89,855.82 = 20,445 : x
  2. Step 2: Convert to fraction form
    59,898.48/89,855.82 = 20,445/x
  3. Step 3: Cross multiply
    59,898.48x = 89,855.82 × 20,445
  4. Step 4: Simplify right side
    59,898.48x = 1,837,102,239.90
  5. Step 5: Solve for x
    x = 1,837,102,239.90/59,898.48
  6. Step 6: Final answer
    x = 30,670.26

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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.