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Finding the Fourth Proportional to 17,907.30, 26,860.95 and 10,131.30

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Solution

The fourth proportional to 17,907.30, 26,860.95 and 10,131.30 is: 15,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,907.30 : 26,860.95 = 10,131.30 : x
  2. Step 2: Convert to fraction form
    17,907.30/26,860.95 = 10,131.30/x
  3. Step 3: Cross multiply
    17,907.30x = 26,860.95 × 10,131.30
  4. Step 4: Simplify right side
    17,907.30x = 272,136,342.74
  5. Step 5: Solve for x
    x = 272,136,342.74/17,907.30
  6. Step 6: Final answer
    x = 15,196.95

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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.