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Finding the Fourth Proportional to 34,902.99, 48,165.90 and 18,987.50

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Solution

The fourth proportional to 34,902.99, 48,165.90 and 18,987.50 is: 26,202.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,902.99 : 48,165.90 = 18,987.50 : x
  2. Step 2: Convert to fraction form
    34,902.99/48,165.90 = 18,987.50/x
  3. Step 3: Cross multiply
    34,902.99x = 48,165.90 × 18,987.50
  4. Step 4: Simplify right side
    34,902.99x = 914,550,026.25
  5. Step 5: Solve for x
    x = 914,550,026.25/34,902.99
  6. Step 6: Final answer
    x = 26,202.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.