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Finding the Fourth Proportional to 19,032.84, 28,554.12 and 7,944.48

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Solution

The fourth proportional to 19,032.84, 28,554.12 and 7,944.48 is: 11,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,032.84 : 28,554.12 = 7,944.48 : x
  2. Step 2: Convert to fraction form
    19,032.84/28,554.12 = 7,944.48/x
  3. Step 3: Cross multiply
    19,032.84x = 28,554.12 × 7,944.48
  4. Step 4: Simplify right side
    19,032.84x = 226,847,635.26
  5. Step 5: Solve for x
    x = 226,847,635.26/19,032.84
  6. Step 6: Final answer
    x = 11,918.75

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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.