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Finding the Fourth Proportional to 2,109.34, 2,910 and 1,270.04

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Solution

The fourth proportional to 2,109.34, 2,910 and 1,270.04 is: 1,752.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.34 : 2,910 = 1,270.04 : x
  2. Step 2: Convert to fraction form
    2,109.34/2,910 = 1,270.04/x
  3. Step 3: Cross multiply
    2,109.34x = 2,910 × 1,270.04
  4. Step 4: Simplify right side
    2,109.34x = 3,695,816.40
  5. Step 5: Solve for x
    x = 3,695,816.40/2,109.34
  6. Step 6: Final answer
    x = 1,752.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.