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Finding the Fourth Proportional to 5,551.68, 7,668.72 and 4,516.32

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Solution

The fourth proportional to 5,551.68, 7,668.72 and 4,516.32 is: 6,238.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.68 : 7,668.72 = 4,516.32 : x
  2. Step 2: Convert to fraction form
    5,551.68/7,668.72 = 4,516.32/x
  3. Step 3: Cross multiply
    5,551.68x = 7,668.72 × 4,516.32
  4. Step 4: Simplify right side
    5,551.68x = 34,634,393.51
  5. Step 5: Solve for x
    x = 34,634,393.51/5,551.68
  6. Step 6: Final answer
    x = 6,238.54

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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.