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Finding the Fourth Proportional to 4,390.08, 6,048 and 3,608.64

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Solution

The fourth proportional to 4,390.08, 6,048 and 3,608.64 is: 4,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.08 : 6,048 = 3,608.64 : x
  2. Step 2: Convert to fraction form
    4,390.08/6,048 = 3,608.64/x
  3. Step 3: Cross multiply
    4,390.08x = 6,048 × 3,608.64
  4. Step 4: Simplify right side
    4,390.08x = 21,825,054.72
  5. Step 5: Solve for x
    x = 21,825,054.72/4,390.08
  6. Step 6: Final answer
    x = 4,971.45

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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.