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Finding the Fourth Proportional to 4,531.53, 6,243.93 and 4,219.86

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Solution

The fourth proportional to 4,531.53, 6,243.93 and 4,219.86 is: 5,814.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,531.53 : 6,243.93 = 4,219.86 : x
  2. Step 2: Convert to fraction form
    4,531.53/6,243.93 = 4,219.86/x
  3. Step 3: Cross multiply
    4,531.53x = 6,243.93 × 4,219.86
  4. Step 4: Simplify right side
    4,531.53x = 26,348,510.45
  5. Step 5: Solve for x
    x = 26,348,510.45/4,531.53
  6. Step 6: Final answer
    x = 5,814.48

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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.