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Finding the Fourth Proportional to 35,454.66, 48,905.76 and 21,104.88

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Solution

The fourth proportional to 35,454.66, 48,905.76 and 21,104.88 is: 29,111.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,454.66 : 48,905.76 = 21,104.88 : x
  2. Step 2: Convert to fraction form
    35,454.66/48,905.76 = 21,104.88/x
  3. Step 3: Cross multiply
    35,454.66x = 48,905.76 × 21,104.88
  4. Step 4: Simplify right side
    35,454.66x = 1,032,150,196.11
  5. Step 5: Solve for x
    x = 1,032,150,196.11/35,454.66
  6. Step 6: Final answer
    x = 29,111.83

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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.