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Finding the Fourth Proportional to 35,728.60, 49,305.60 and 19,814.52

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Solution

The fourth proportional to 35,728.60, 49,305.60 and 19,814.52 is: 27,344.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,728.60 : 49,305.60 = 19,814.52 : x
  2. Step 2: Convert to fraction form
    35,728.60/49,305.60 = 19,814.52/x
  3. Step 3: Cross multiply
    35,728.60x = 49,305.60 × 19,814.52
  4. Step 4: Simplify right side
    35,728.60x = 976,966,797.31
  5. Step 5: Solve for x
    x = 976,966,797.31/35,728.60
  6. Step 6: Final answer
    x = 27,344.11

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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.