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Finding the Fourth Proportional to 13,272.88, 19,909.14 and 4,038.88

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Solution

The fourth proportional to 13,272.88, 19,909.14 and 4,038.88 is: 6,058.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.88 : 19,909.14 = 4,038.88 : x
  2. Step 2: Convert to fraction form
    13,272.88/19,909.14 = 4,038.88/x
  3. Step 3: Cross multiply
    13,272.88x = 19,909.14 × 4,038.88
  4. Step 4: Simplify right side
    13,272.88x = 80,410,627.36
  5. Step 5: Solve for x
    x = 80,410,627.36/13,272.88
  6. Step 6: Final answer
    x = 6,058.27

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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.