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Finding the Fourth Proportional to 18,587.91, 25,650.89 and 10,090.04

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Solution

The fourth proportional to 18,587.91, 25,650.89 and 10,090.04 is: 13,924.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.91 : 25,650.89 = 10,090.04 : x
  2. Step 2: Convert to fraction form
    18,587.91/25,650.89 = 10,090.04/x
  3. Step 3: Cross multiply
    18,587.91x = 25,650.89 × 10,090.04
  4. Step 4: Simplify right side
    18,587.91x = 258,818,506.14
  5. Step 5: Solve for x
    x = 258,818,506.14/18,587.91
  6. Step 6: Final answer
    x = 13,924.02

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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.