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Finding the Fourth Proportional to 19,949.68, 29,924.34 and 7,637.68

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Solution

The fourth proportional to 19,949.68, 29,924.34 and 7,637.68 is: 11,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,949.68 : 29,924.34 = 7,637.68 : x
  2. Step 2: Convert to fraction form
    19,949.68/29,924.34 = 7,637.68/x
  3. Step 3: Cross multiply
    19,949.68x = 29,924.34 × 7,637.68
  4. Step 4: Simplify right side
    19,949.68x = 228,552,533.13
  5. Step 5: Solve for x
    x = 228,552,533.13/19,949.68
  6. Step 6: Final answer
    x = 11,456.45

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1.5x scale

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.