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Finding the Fourth Proportional to 5,368, 7,406.56 and 3,009.92

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Solution

The fourth proportional to 5,368, 7,406.56 and 3,009.92 is: 4,152.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368 : 7,406.56 = 3,009.92 : x
  2. Step 2: Convert to fraction form
    5,368/7,406.56 = 3,009.92/x
  3. Step 3: Cross multiply
    5,368x = 7,406.56 × 3,009.92
  4. Step 4: Simplify right side
    5,368x = 22,293,153.08
  5. Step 5: Solve for x
    x = 22,293,153.08/5,368
  6. Step 6: Final answer
    x = 4,152.97

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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.