Home / 19,689.09-29,522.71-7,841.94

Finding the Fourth Proportional to 19,689.09, 29,522.71 and 7,841.94

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Solution

The fourth proportional to 19,689.09, 29,522.71 and 7,841.94 is: 11,758.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.09 : 29,522.71 = 7,841.94 : x
  2. Step 2: Convert to fraction form
    19,689.09/29,522.71 = 7,841.94/x
  3. Step 3: Cross multiply
    19,689.09x = 29,522.71 × 7,841.94
  4. Step 4: Simplify right side
    19,689.09x = 231,515,320.46
  5. Step 5: Solve for x
    x = 231,515,320.46/19,689.09
  6. Step 6: Final answer
    x = 11,758.56

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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.