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Finding the Fourth Proportional to 4,917.10, 7,375.65 and 4,703.80

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Solution

The fourth proportional to 4,917.10, 7,375.65 and 4,703.80 is: 7,055.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.10 : 7,375.65 = 4,703.80 : x
  2. Step 2: Convert to fraction form
    4,917.10/7,375.65 = 4,703.80/x
  3. Step 3: Cross multiply
    4,917.10x = 7,375.65 × 4,703.80
  4. Step 4: Simplify right side
    4,917.10x = 34,693,582.47
  5. Step 5: Solve for x
    x = 34,693,582.47/4,917.10
  6. Step 6: Final answer
    x = 7,055.70

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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.