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Finding the Fourth Proportional to 48,266.88, 72,393.60 and 13,209.60

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Solution

The fourth proportional to 48,266.88, 72,393.60 and 13,209.60 is: 19,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,266.88 : 72,393.60 = 13,209.60 : x
  2. Step 2: Convert to fraction form
    48,266.88/72,393.60 = 13,209.60/x
  3. Step 3: Cross multiply
    48,266.88x = 72,393.60 × 13,209.60
  4. Step 4: Simplify right side
    48,266.88x = 956,290,498.56
  5. Step 5: Solve for x
    x = 956,290,498.56/48,266.88
  6. Step 6: Final answer
    x = 19,812.56

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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.