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Finding the Fourth Proportional to 13,907.47, 19,193.13 and 7,941.01

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Solution

The fourth proportional to 13,907.47, 19,193.13 and 7,941.01 is: 10,959.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.47 : 19,193.13 = 7,941.01 : x
  2. Step 2: Convert to fraction form
    13,907.47/19,193.13 = 7,941.01/x
  3. Step 3: Cross multiply
    13,907.47x = 19,193.13 × 7,941.01
  4. Step 4: Simplify right side
    13,907.47x = 152,412,797.56
  5. Step 5: Solve for x
    x = 152,412,797.56/13,907.47
  6. Step 6: Final answer
    x = 10,959.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.