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Finding the Fourth Proportional to 61,963.89, 85,509.95 and 35,111.51

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Solution

The fourth proportional to 61,963.89, 85,509.95 and 35,111.51 is: 48,453.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,963.89 : 85,509.95 = 35,111.51 : x
  2. Step 2: Convert to fraction form
    61,963.89/85,509.95 = 35,111.51/x
  3. Step 3: Cross multiply
    61,963.89x = 85,509.95 × 35,111.51
  4. Step 4: Simplify right side
    61,963.89x = 3,002,383,839.08
  5. Step 5: Solve for x
    x = 3,002,383,839.08/61,963.89
  6. Step 6: Final answer
    x = 48,453.77

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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.