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Finding the Fourth Proportional to 12,800.48, 19,203.26 and 4,482.88

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Solution

The fourth proportional to 12,800.48, 19,203.26 and 4,482.88 is: 6,725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.48 : 19,203.26 = 4,482.88 : x
  2. Step 2: Convert to fraction form
    12,800.48/19,203.26 = 4,482.88/x
  3. Step 3: Cross multiply
    12,800.48x = 19,203.26 × 4,482.88
  4. Step 4: Simplify right side
    12,800.48x = 86,085,910.19
  5. Step 5: Solve for x
    x = 86,085,910.19/12,800.48
  6. Step 6: Final answer
    x = 6,725.21

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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.