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Finding the Fourth Proportional to 48,495.99, 72,744.08 and 13,435.74

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Solution

The fourth proportional to 48,495.99, 72,744.08 and 13,435.74 is: 20,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,495.99 : 72,744.08 = 13,435.74 : x
  2. Step 2: Convert to fraction form
    48,495.99/72,744.08 = 13,435.74/x
  3. Step 3: Cross multiply
    48,495.99x = 72,744.08 × 13,435.74
  4. Step 4: Simplify right side
    48,495.99x = 977,370,478.24
  5. Step 5: Solve for x
    x = 977,370,478.24/48,495.99
  6. Step 6: Final answer
    x = 20,153.63

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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.