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Finding the Fourth Proportional to 42,883.99, 64,351.28 and 17,922.12

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Solution

The fourth proportional to 42,883.99, 64,351.28 and 17,922.12 is: 26,893.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,883.99 : 64,351.28 = 17,922.12 : x
  2. Step 2: Convert to fraction form
    42,883.99/64,351.28 = 17,922.12/x
  3. Step 3: Cross multiply
    42,883.99x = 64,351.28 × 17,922.12
  4. Step 4: Simplify right side
    42,883.99x = 1,153,311,555.26
  5. Step 5: Solve for x
    x = 1,153,311,555.26/42,883.99
  6. Step 6: Final answer
    x = 26,893.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.