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Finding the Fourth Proportional to 43,602.10, 65,273.55 and 28,827.70

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Solution

The fourth proportional to 43,602.10, 65,273.55 and 28,827.70 is: 43,155.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,602.10 : 65,273.55 = 28,827.70 : x
  2. Step 2: Convert to fraction form
    43,602.10/65,273.55 = 28,827.70/x
  3. Step 3: Cross multiply
    43,602.10x = 65,273.55 × 28,827.70
  4. Step 4: Simplify right side
    43,602.10x = 1,881,686,317.34
  5. Step 5: Solve for x
    x = 1,881,686,317.34/43,602.10
  6. Step 6: Final answer
    x = 43,155.86

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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.