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Finding the Fourth Proportional to 18,590.58, 25,658.01 and 14,347.80

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Solution

The fourth proportional to 18,590.58, 25,658.01 and 14,347.80 is: 19,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.58 : 25,658.01 = 14,347.80 : x
  2. Step 2: Convert to fraction form
    18,590.58/25,658.01 = 14,347.80/x
  3. Step 3: Cross multiply
    18,590.58x = 25,658.01 × 14,347.80
  4. Step 4: Simplify right side
    18,590.58x = 368,135,995.88
  5. Step 5: Solve for x
    x = 368,135,995.88/18,590.58
  6. Step 6: Final answer
    x = 19,802.29

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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.