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Finding the Fourth Proportional to 35,878.79, 49,513.21 and 19,963.22

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Solution

The fourth proportional to 35,878.79, 49,513.21 and 19,963.22 is: 27,549.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,878.79 : 49,513.21 = 19,963.22 : x
  2. Step 2: Convert to fraction form
    35,878.79/49,513.21 = 19,963.22/x
  3. Step 3: Cross multiply
    35,878.79x = 49,513.21 × 19,963.22
  4. Step 4: Simplify right side
    35,878.79x = 988,442,806.66
  5. Step 5: Solve for x
    x = 988,442,806.66/35,878.79
  6. Step 6: Final answer
    x = 27,549.50

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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.