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Finding the Fourth Proportional to 12,707.54, 19,061.30 and 3,473.54

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Solution

The fourth proportional to 12,707.54, 19,061.30 and 3,473.54 is: 5,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.54 : 19,061.30 = 3,473.54 : x
  2. Step 2: Convert to fraction form
    12,707.54/19,061.30 = 3,473.54/x
  3. Step 3: Cross multiply
    12,707.54x = 19,061.30 × 3,473.54
  4. Step 4: Simplify right side
    12,707.54x = 66,210,101.38
  5. Step 5: Solve for x
    x = 66,210,101.38/12,707.54
  6. Step 6: Final answer
    x = 5,210.30

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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.