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Finding the Fourth Proportional to 35,455.68, 48,929.40 and 19,540.08

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Solution

The fourth proportional to 35,455.68, 48,929.40 and 19,540.08 is: 26,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,455.68 : 48,929.40 = 19,540.08 : x
  2. Step 2: Convert to fraction form
    35,455.68/48,929.40 = 19,540.08/x
  3. Step 3: Cross multiply
    35,455.68x = 48,929.40 × 19,540.08
  4. Step 4: Simplify right side
    35,455.68x = 956,084,390.35
  5. Step 5: Solve for x
    x = 956,084,390.35/35,455.68
  6. Step 6: Final answer
    x = 26,965.62

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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.