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Finding the Fourth Proportional to 35,361.74, 48,801.54 and 21,017.75

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Solution

The fourth proportional to 35,361.74, 48,801.54 and 21,017.75 is: 29,005.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,361.74 : 48,801.54 = 21,017.75 : x
  2. Step 2: Convert to fraction form
    35,361.74/48,801.54 = 21,017.75/x
  3. Step 3: Cross multiply
    35,361.74x = 48,801.54 × 21,017.75
  4. Step 4: Simplify right side
    35,361.74x = 1,025,698,695.68
  5. Step 5: Solve for x
    x = 1,025,698,695.68/35,361.74
  6. Step 6: Final answer
    x = 29,005.89

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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.