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Finding the Fourth Proportional to 19,959.13, 29,958.39 and 10,599.12

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Solution

The fourth proportional to 19,959.13, 29,958.39 and 10,599.12 is: 15,909.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.13 : 29,958.39 = 10,599.12 : x
  2. Step 2: Convert to fraction form
    19,959.13/29,958.39 = 10,599.12/x
  3. Step 3: Cross multiply
    19,959.13x = 29,958.39 × 10,599.12
  4. Step 4: Simplify right side
    19,959.13x = 317,532,681.47
  5. Step 5: Solve for x
    x = 317,532,681.47/19,959.13
  6. Step 6: Final answer
    x = 15,909.14

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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.