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Finding the Fourth Proportional to 5,354.59, 7,388.88 and 3,230.47

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Solution

The fourth proportional to 5,354.59, 7,388.88 and 3,230.47 is: 4,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,354.59 : 7,388.88 = 3,230.47 : x
  2. Step 2: Convert to fraction form
    5,354.59/7,388.88 = 3,230.47/x
  3. Step 3: Cross multiply
    5,354.59x = 7,388.88 × 3,230.47
  4. Step 4: Simplify right side
    5,354.59x = 23,869,555.17
  5. Step 5: Solve for x
    x = 23,869,555.17/5,354.59
  6. Step 6: Final answer
    x = 4,457.77

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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.