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Finding the Fourth Proportional to 7,031.74, 9,703.75 and 3,845.10

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Solution

The fourth proportional to 7,031.74, 9,703.75 and 3,845.10 is: 5,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,031.74 : 9,703.75 = 3,845.10 : x
  2. Step 2: Convert to fraction form
    7,031.74/9,703.75 = 3,845.10/x
  3. Step 3: Cross multiply
    7,031.74x = 9,703.75 × 3,845.10
  4. Step 4: Simplify right side
    7,031.74x = 37,311,841.24
  5. Step 5: Solve for x
    x = 37,311,841.24/7,031.74
  6. Step 6: Final answer
    x = 5,306.21

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1.5x scale

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.