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Finding the Fourth Proportional to 12,590.03, 18,959.99 and 10,966.19

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Solution

The fourth proportional to 12,590.03, 18,959.99 and 10,966.19 is: 16,514.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.03 : 18,959.99 = 10,966.19 : x
  2. Step 2: Convert to fraction form
    12,590.03/18,959.99 = 10,966.19/x
  3. Step 3: Cross multiply
    12,590.03x = 18,959.99 × 10,966.19
  4. Step 4: Simplify right side
    12,590.03x = 207,918,703.11
  5. Step 5: Solve for x
    x = 207,918,703.11/12,590.03
  6. Step 6: Final answer
    x = 16,514.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.