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Finding the Fourth Proportional to 34,765.76, 47,976.54 and 18,850.16

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Solution

The fourth proportional to 34,765.76, 47,976.54 and 18,850.16 is: 26,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,765.76 : 47,976.54 = 18,850.16 : x
  2. Step 2: Convert to fraction form
    34,765.76/47,976.54 = 18,850.16/x
  3. Step 3: Cross multiply
    34,765.76x = 47,976.54 × 18,850.16
  4. Step 4: Simplify right side
    34,765.76x = 904,365,455.25
  5. Step 5: Solve for x
    x = 904,365,455.25/34,765.76
  6. Step 6: Final answer
    x = 26,013.11

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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.