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Finding the Fourth Proportional to 2,703.12, 4,056.12 and 1,164

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Solution

The fourth proportional to 2,703.12, 4,056.12 and 1,164 is: 1,746.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703.12 : 4,056.12 = 1,164 : x
  2. Step 2: Convert to fraction form
    2,703.12/4,056.12 = 1,164/x
  3. Step 3: Cross multiply
    2,703.12x = 4,056.12 × 1,164
  4. Step 4: Simplify right side
    2,703.12x = 4,721,323.68
  5. Step 5: Solve for x
    x = 4,721,323.68/2,703.12
  6. Step 6: Final answer
    x = 1,746.62

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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.