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Finding the Fourth Proportional to 6,341.75, 8,751.56 and 3,509.11

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Solution

The fourth proportional to 6,341.75, 8,751.56 and 3,509.11 is: 4,842.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,341.75 : 8,751.56 = 3,509.11 : x
  2. Step 2: Convert to fraction form
    6,341.75/8,751.56 = 3,509.11/x
  3. Step 3: Cross multiply
    6,341.75x = 8,751.56 × 3,509.11
  4. Step 4: Simplify right side
    6,341.75x = 30,710,186.71
  5. Step 5: Solve for x
    x = 30,710,186.71/6,341.75
  6. Step 6: Final answer
    x = 4,842.54

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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.