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Finding the Fourth Proportional to 34,697.90, 47,883.02 and 18,782.28

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Solution

The fourth proportional to 34,697.90, 47,883.02 and 18,782.28 is: 25,919.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,697.90 : 47,883.02 = 18,782.28 : x
  2. Step 2: Convert to fraction form
    34,697.90/47,883.02 = 18,782.28/x
  3. Step 3: Cross multiply
    34,697.90x = 47,883.02 × 18,782.28
  4. Step 4: Simplify right side
    34,697.90x = 899,352,194.97
  5. Step 5: Solve for x
    x = 899,352,194.97/34,697.90
  6. Step 6: Final answer
    x = 25,919.50

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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.