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Finding the Fourth Proportional to 47,951.52, 66,130.20 and 30,048.48

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Solution

The fourth proportional to 47,951.52, 66,130.20 and 30,048.48 is: 41,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,951.52 : 66,130.20 = 30,048.48 : x
  2. Step 2: Convert to fraction form
    47,951.52/66,130.20 = 30,048.48/x
  3. Step 3: Cross multiply
    47,951.52x = 66,130.20 × 30,048.48
  4. Step 4: Simplify right side
    47,951.52x = 1,987,111,992.10
  5. Step 5: Solve for x
    x = 1,987,111,992.10/47,951.52
  6. Step 6: Final answer
    x = 41,440.02

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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.