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Finding the Fourth Proportional to 4,827.78, 7,239.24 and 2,358.90

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Solution

The fourth proportional to 4,827.78, 7,239.24 and 2,358.90 is: 3,537.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,827.78 : 7,239.24 = 2,358.90 : x
  2. Step 2: Convert to fraction form
    4,827.78/7,239.24 = 2,358.90/x
  3. Step 3: Cross multiply
    4,827.78x = 7,239.24 × 2,358.90
  4. Step 4: Simplify right side
    4,827.78x = 17,076,643.24
  5. Step 5: Solve for x
    x = 17,076,643.24/4,827.78
  6. Step 6: Final answer
    x = 3,537.16

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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.