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Finding the Fourth Proportional to 6,312.75, 8,710.57 and 3,794.25

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Solution

The fourth proportional to 6,312.75, 8,710.57 and 3,794.25 is: 5,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,312.75 : 8,710.57 = 3,794.25 : x
  2. Step 2: Convert to fraction form
    6,312.75/8,710.57 = 3,794.25/x
  3. Step 3: Cross multiply
    6,312.75x = 8,710.57 × 3,794.25
  4. Step 4: Simplify right side
    6,312.75x = 33,050,117.63
  5. Step 5: Solve for x
    x = 33,050,117.63/6,312.75
  6. Step 6: Final answer
    x = 5,235.46

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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.