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Finding the Fourth Proportional to 45,314.55, 62,543.03 and 28,951.29

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Solution

The fourth proportional to 45,314.55, 62,543.03 and 28,951.29 is: 39,958.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,314.55 : 62,543.03 = 28,951.29 : x
  2. Step 2: Convert to fraction form
    45,314.55/62,543.03 = 28,951.29/x
  3. Step 3: Cross multiply
    45,314.55x = 62,543.03 × 28,951.29
  4. Step 4: Simplify right side
    45,314.55x = 1,810,701,254.25
  5. Step 5: Solve for x
    x = 1,810,701,254.25/45,314.55
  6. Step 6: Final answer
    x = 39,958.50

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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.