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Finding the Fourth Proportional to 12,804.35, 19,203.48 and 4,482

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Solution

The fourth proportional to 12,804.35, 19,203.48 and 4,482 is: 6,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.35 : 19,203.48 = 4,482 : x
  2. Step 2: Convert to fraction form
    12,804.35/19,203.48 = 4,482/x
  3. Step 3: Cross multiply
    12,804.35x = 19,203.48 × 4,482
  4. Step 4: Simplify right side
    12,804.35x = 86,069,997.36
  5. Step 5: Solve for x
    x = 86,069,997.36/12,804.35
  6. Step 6: Final answer
    x = 6,721.94

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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.