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Finding the Fourth Proportional to 9,703, 14,555.10 and 2,778.04

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Solution

The fourth proportional to 9,703, 14,555.10 and 2,778.04 is: 4,167.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,703 : 14,555.10 = 2,778.04 : x
  2. Step 2: Convert to fraction form
    9,703/14,555.10 = 2,778.04/x
  3. Step 3: Cross multiply
    9,703x = 14,555.10 × 2,778.04
  4. Step 4: Simplify right side
    9,703x = 40,434,650.00
  5. Step 5: Solve for x
    x = 40,434,650.00/9,703
  6. Step 6: Final answer
    x = 4,167.23

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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.