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Finding the Fourth Proportional to 18,695.30, 28,042.34 and 7,599.01

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Solution

The fourth proportional to 18,695.30, 28,042.34 and 7,599.01 is: 11,398.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695.30 : 28,042.34 = 7,599.01 : x
  2. Step 2: Convert to fraction form
    18,695.30/28,042.34 = 7,599.01/x
  3. Step 3: Cross multiply
    18,695.30x = 28,042.34 × 7,599.01
  4. Step 4: Simplify right side
    18,695.30x = 213,094,022.08
  5. Step 5: Solve for x
    x = 213,094,022.08/18,695.30
  6. Step 6: Final answer
    x = 11,398.27

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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.