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Finding the Fourth Proportional to 35,354.60, 48,789.96 and 19,439

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Solution

The fourth proportional to 35,354.60, 48,789.96 and 19,439 is: 26,826.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,354.60 : 48,789.96 = 19,439 : x
  2. Step 2: Convert to fraction form
    35,354.60/48,789.96 = 19,439/x
  3. Step 3: Cross multiply
    35,354.60x = 48,789.96 × 19,439
  4. Step 4: Simplify right side
    35,354.60x = 948,428,032.44
  5. Step 5: Solve for x
    x = 948,428,032.44/35,354.60
  6. Step 6: Final answer
    x = 26,826.16

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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.