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Finding the Fourth Proportional to 7,486.90, 10,326.09 and 4,834.96

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Solution

The fourth proportional to 7,486.90, 10,326.09 and 4,834.96 is: 6,668.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.90 : 10,326.09 = 4,834.96 : x
  2. Step 2: Convert to fraction form
    7,486.90/10,326.09 = 4,834.96/x
  3. Step 3: Cross multiply
    7,486.90x = 10,326.09 × 4,834.96
  4. Step 4: Simplify right side
    7,486.90x = 49,926,232.11
  5. Step 5: Solve for x
    x = 49,926,232.11/7,486.90
  6. Step 6: Final answer
    x = 6,668.48

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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.