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Finding the Fourth Proportional to 7,001.90, 10,504.90 and 2,071.66

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Solution

The fourth proportional to 7,001.90, 10,504.90 and 2,071.66 is: 3,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.90 : 10,504.90 = 2,071.66 : x
  2. Step 2: Convert to fraction form
    7,001.90/10,504.90 = 2,071.66/x
  3. Step 3: Cross multiply
    7,001.90x = 10,504.90 × 2,071.66
  4. Step 4: Simplify right side
    7,001.90x = 21,762,581.13
  5. Step 5: Solve for x
    x = 21,762,581.13/7,001.90
  6. Step 6: Final answer
    x = 3,108.10

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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.