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Finding the Fourth Proportional to 35,283.60, 48,691.92 and 19,369.50

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Solution

The fourth proportional to 35,283.60, 48,691.92 and 19,369.50 is: 26,730.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,283.60 : 48,691.92 = 19,369.50 : x
  2. Step 2: Convert to fraction form
    35,283.60/48,691.92 = 19,369.50/x
  3. Step 3: Cross multiply
    35,283.60x = 48,691.92 × 19,369.50
  4. Step 4: Simplify right side
    35,283.60x = 943,138,144.44
  5. Step 5: Solve for x
    x = 943,138,144.44/35,283.60
  6. Step 6: Final answer
    x = 26,730.21

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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.