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Finding the Fourth Proportional to 35,455.59, 48,929.82 and 20,351.01

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Solution

The fourth proportional to 35,455.59, 48,929.82 and 20,351.01 is: 28,085.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,455.59 : 48,929.82 = 20,351.01 : x
  2. Step 2: Convert to fraction form
    35,455.59/48,929.82 = 20,351.01/x
  3. Step 3: Cross multiply
    35,455.59x = 48,929.82 × 20,351.01
  4. Step 4: Simplify right side
    35,455.59x = 995,771,256.12
  5. Step 5: Solve for x
    x = 995,771,256.12/35,455.59
  6. Step 6: Final answer
    x = 28,085.03

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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.