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Finding the Fourth Proportional to 13,897.95, 19,179.18 and 7,524.55

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Solution

The fourth proportional to 13,897.95, 19,179.18 and 7,524.55 is: 10,383.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.95 : 19,179.18 = 7,524.55 : x
  2. Step 2: Convert to fraction form
    13,897.95/19,179.18 = 7,524.55/x
  3. Step 3: Cross multiply
    13,897.95x = 19,179.18 × 7,524.55
  4. Step 4: Simplify right side
    13,897.95x = 144,314,643.18
  5. Step 5: Solve for x
    x = 144,314,643.18/13,897.95
  6. Step 6: Final answer
    x = 10,383.88

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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.