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Finding the Fourth Proportional to 10,284.88, 14,193.08 and 5,569.12

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Solution

The fourth proportional to 10,284.88, 14,193.08 and 5,569.12 is: 7,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.88 : 14,193.08 = 5,569.12 : x
  2. Step 2: Convert to fraction form
    10,284.88/14,193.08 = 5,569.12/x
  3. Step 3: Cross multiply
    10,284.88x = 14,193.08 × 5,569.12
  4. Step 4: Simplify right side
    10,284.88x = 79,042,965.69
  5. Step 5: Solve for x
    x = 79,042,965.69/10,284.88
  6. Step 6: Final answer
    x = 7,685.36

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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.