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Finding the Fourth Proportional to 4,668.32, 6,988.80 and 4,631.42

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Solution

The fourth proportional to 4,668.32, 6,988.80 and 4,631.42 is: 6,933.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,668.32 : 6,988.80 = 4,631.42 : x
  2. Step 2: Convert to fraction form
    4,668.32/6,988.80 = 4,631.42/x
  3. Step 3: Cross multiply
    4,668.32x = 6,988.80 × 4,631.42
  4. Step 4: Simplify right side
    4,668.32x = 32,368,033.15
  5. Step 5: Solve for x
    x = 32,368,033.15/4,668.32
  6. Step 6: Final answer
    x = 6,933.56

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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.