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Finding the Fourth Proportional to 28,927.30, 39,920.24 and 17,597.30

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Solution

The fourth proportional to 28,927.30, 39,920.24 and 17,597.30 is: 24,284.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,927.30 : 39,920.24 = 17,597.30 : x
  2. Step 2: Convert to fraction form
    28,927.30/39,920.24 = 17,597.30/x
  3. Step 3: Cross multiply
    28,927.30x = 39,920.24 × 17,597.30
  4. Step 4: Simplify right side
    28,927.30x = 702,488,439.35
  5. Step 5: Solve for x
    x = 702,488,439.35/28,927.30
  6. Step 6: Final answer
    x = 24,284.62

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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.