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Finding the Fourth Proportional to 4,718.07, 7,077.09 and 1,208.08

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Solution

The fourth proportional to 4,718.07, 7,077.09 and 1,208.08 is: 1,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.07 : 7,077.09 = 1,208.08 : x
  2. Step 2: Convert to fraction form
    4,718.07/7,077.09 = 1,208.08/x
  3. Step 3: Cross multiply
    4,718.07x = 7,077.09 × 1,208.08
  4. Step 4: Simplify right side
    4,718.07x = 8,549,690.89
  5. Step 5: Solve for x
    x = 8,549,690.89/4,718.07
  6. Step 6: Final answer
    x = 1,812.12

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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.