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Finding the Fourth Proportional to 4,483.90, 6,755.74 and 4,129.66

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Solution

The fourth proportional to 4,483.90, 6,755.74 and 4,129.66 is: 6,222.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,483.90 : 6,755.74 = 4,129.66 : x
  2. Step 2: Convert to fraction form
    4,483.90/6,755.74 = 4,129.66/x
  3. Step 3: Cross multiply
    4,483.90x = 6,755.74 × 4,129.66
  4. Step 4: Simplify right side
    4,483.90x = 27,898,909.25
  5. Step 5: Solve for x
    x = 27,898,909.25/4,483.90
  6. Step 6: Final answer
    x = 6,222.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.