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Finding the Fourth Proportional to 4,842.99, 7,248.29 and 4,257.63

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Solution

The fourth proportional to 4,842.99, 7,248.29 and 4,257.63 is: 6,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,842.99 : 7,248.29 = 4,257.63 : x
  2. Step 2: Convert to fraction form
    4,842.99/7,248.29 = 4,257.63/x
  3. Step 3: Cross multiply
    4,842.99x = 7,248.29 × 4,257.63
  4. Step 4: Simplify right side
    4,842.99x = 30,860,515.66
  5. Step 5: Solve for x
    x = 30,860,515.66/4,842.99
  6. Step 6: Final answer
    x = 6,372.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.