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Finding the Fourth Proportional to 6,681.51, 9,215.19 and 6,234.39

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Solution

The fourth proportional to 6,681.51, 9,215.19 and 6,234.39 is: 8,598.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681.51 : 9,215.19 = 6,234.39 : x
  2. Step 2: Convert to fraction form
    6,681.51/9,215.19 = 6,234.39/x
  3. Step 3: Cross multiply
    6,681.51x = 9,215.19 × 6,234.39
  4. Step 4: Simplify right side
    6,681.51x = 57,451,088.38
  5. Step 5: Solve for x
    x = 57,451,088.38/6,681.51
  6. Step 6: Final answer
    x = 8,598.52

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Half scale
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Double scale
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Similar ratio
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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.