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Finding the Fourth Proportional to 6,341.16, 8,751.54 and 3,688.68

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Solution

The fourth proportional to 6,341.16, 8,751.54 and 3,688.68 is: 5,090.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,341.16 : 8,751.54 = 3,688.68 : x
  2. Step 2: Convert to fraction form
    6,341.16/8,751.54 = 3,688.68/x
  3. Step 3: Cross multiply
    6,341.16x = 8,751.54 × 3,688.68
  4. Step 4: Simplify right side
    6,341.16x = 32,281,630.57
  5. Step 5: Solve for x
    x = 32,281,630.57/6,341.16
  6. Step 6: Final answer
    x = 5,090.81

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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.