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Finding the Fourth Proportional to 35,354.79, 48,789.18 and 19,439.10

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Solution

The fourth proportional to 35,354.79, 48,789.18 and 19,439.10 is: 26,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,354.79 : 48,789.18 = 19,439.10 : x
  2. Step 2: Convert to fraction form
    35,354.79/48,789.18 = 19,439.10/x
  3. Step 3: Cross multiply
    35,354.79x = 48,789.18 × 19,439.10
  4. Step 4: Simplify right side
    35,354.79x = 948,417,748.94
  5. Step 5: Solve for x
    x = 948,417,748.94/35,354.79
  6. Step 6: Final answer
    x = 26,825.72

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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.