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Finding the Fourth Proportional to 34,774.99, 47,989.01 and 18,859.12

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Solution

The fourth proportional to 34,774.99, 47,989.01 and 18,859.12 is: 26,025.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,774.99 : 47,989.01 = 18,859.12 : x
  2. Step 2: Convert to fraction form
    34,774.99/47,989.01 = 18,859.12/x
  3. Step 3: Cross multiply
    34,774.99x = 47,989.01 × 18,859.12
  4. Step 4: Simplify right side
    34,774.99x = 905,030,164.03
  5. Step 5: Solve for x
    x = 905,030,164.03/34,774.99
  6. Step 6: Final answer
    x = 26,025.32

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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.