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Finding the Fourth Proportional to 4,668.69, 6,442.68 and 2,572.80

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Solution

The fourth proportional to 4,668.69, 6,442.68 and 2,572.80 is: 3,550.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,668.69 : 6,442.68 = 2,572.80 : x
  2. Step 2: Convert to fraction form
    4,668.69/6,442.68 = 2,572.80/x
  3. Step 3: Cross multiply
    4,668.69x = 6,442.68 × 2,572.80
  4. Step 4: Simplify right side
    4,668.69x = 16,575,727.10
  5. Step 5: Solve for x
    x = 16,575,727.10/4,668.69
  6. Step 6: Final answer
    x = 3,550.40

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Half scale
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Double scale
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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.