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Finding the Fourth Proportional to 4,340.48, 6,516.48 and 4,190.72

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Solution

The fourth proportional to 4,340.48, 6,516.48 and 4,190.72 is: 6,291.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,340.48 : 6,516.48 = 4,190.72 : x
  2. Step 2: Convert to fraction form
    4,340.48/6,516.48 = 4,190.72/x
  3. Step 3: Cross multiply
    4,340.48x = 6,516.48 × 4,190.72
  4. Step 4: Simplify right side
    4,340.48x = 27,308,743.07
  5. Step 5: Solve for x
    x = 27,308,743.07/4,340.48
  6. Step 6: Final answer
    x = 6,291.64

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1.5x scale

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.