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Finding the Fourth Proportional to 48,855.90, 73,295.40 and 38,898.30

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Solution

The fourth proportional to 48,855.90, 73,295.40 and 38,898.30 is: 58,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,855.90 : 73,295.40 = 38,898.30 : x
  2. Step 2: Convert to fraction form
    48,855.90/73,295.40 = 38,898.30/x
  3. Step 3: Cross multiply
    48,855.90x = 73,295.40 × 38,898.30
  4. Step 4: Simplify right side
    48,855.90x = 2,851,066,457.82
  5. Step 5: Solve for x
    x = 2,851,066,457.82/48,855.90
  6. Step 6: Final answer
    x = 58,356.65

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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.