Home / 19,690.11-29,526.53-7,206.90

Finding the Fourth Proportional to 19,690.11, 29,526.53 and 7,206.90

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Solution

The fourth proportional to 19,690.11, 29,526.53 and 7,206.90 is: 10,807.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.11 : 29,526.53 = 7,206.90 : x
  2. Step 2: Convert to fraction form
    19,690.11/29,526.53 = 7,206.90/x
  3. Step 3: Cross multiply
    19,690.11x = 29,526.53 × 7,206.90
  4. Step 4: Simplify right side
    19,690.11x = 212,794,713.02
  5. Step 5: Solve for x
    x = 212,794,713.02/19,690.11
  6. Step 6: Final answer
    x = 10,807.19

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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.