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Finding the Fourth Proportional to 35,805.84, 49,410.18 and 19,889.28

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Solution

The fourth proportional to 35,805.84, 49,410.18 and 19,889.28 is: 27,446.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,805.84 : 49,410.18 = 19,889.28 : x
  2. Step 2: Convert to fraction form
    35,805.84/49,410.18 = 19,889.28/x
  3. Step 3: Cross multiply
    35,805.84x = 49,410.18 × 19,889.28
  4. Step 4: Simplify right side
    35,805.84x = 982,732,904.87
  5. Step 5: Solve for x
    x = 982,732,904.87/35,805.84
  6. Step 6: Final answer
    x = 27,446.16

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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.