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Finding the Fourth Proportional to 45,804.29, 68,703.12 and 14,213.52

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Solution

The fourth proportional to 45,804.29, 68,703.12 and 14,213.52 is: 21,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,804.29 : 68,703.12 = 14,213.52 : x
  2. Step 2: Convert to fraction form
    45,804.29/68,703.12 = 14,213.52/x
  3. Step 3: Cross multiply
    45,804.29x = 68,703.12 × 14,213.52
  4. Step 4: Simplify right side
    45,804.29x = 976,513,170.18
  5. Step 5: Solve for x
    x = 976,513,170.18/45,804.29
  6. Step 6: Final answer
    x = 21,319.25

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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.