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Finding the Fourth Proportional to 47,111.78, 65,013.78 and 25,601.30

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Solution

The fourth proportional to 47,111.78, 65,013.78 and 25,601.30 is: 35,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,111.78 : 65,013.78 = 25,601.30 : x
  2. Step 2: Convert to fraction form
    47,111.78/65,013.78 = 25,601.30/x
  3. Step 3: Cross multiply
    47,111.78x = 65,013.78 × 25,601.30
  4. Step 4: Simplify right side
    47,111.78x = 1,664,437,285.91
  5. Step 5: Solve for x
    x = 1,664,437,285.91/47,111.78
  6. Step 6: Final answer
    x = 35,329.54

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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.