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Finding the Fourth Proportional to 5,290.64, 7,302.10 and 3,053.96

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Solution

The fourth proportional to 5,290.64, 7,302.10 and 3,053.96 is: 4,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.64 : 7,302.10 = 3,053.96 : x
  2. Step 2: Convert to fraction form
    5,290.64/7,302.10 = 3,053.96/x
  3. Step 3: Cross multiply
    5,290.64x = 7,302.10 × 3,053.96
  4. Step 4: Simplify right side
    5,290.64x = 22,300,321.32
  5. Step 5: Solve for x
    x = 22,300,321.32/5,290.64
  6. Step 6: Final answer
    x = 4,215.05

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Why These Related Problems?

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