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Finding the Fourth Proportional to 65,916.45, 98,803.80 and 28,494.32

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Solution

The fourth proportional to 65,916.45, 98,803.80 and 28,494.32 is: 42,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,916.45 : 98,803.80 = 28,494.32 : x
  2. Step 2: Convert to fraction form
    65,916.45/98,803.80 = 28,494.32/x
  3. Step 3: Cross multiply
    65,916.45x = 98,803.80 × 28,494.32
  4. Step 4: Simplify right side
    65,916.45x = 2,815,346,600.40
  5. Step 5: Solve for x
    x = 2,815,346,600.40/65,916.45
  6. Step 6: Final answer
    x = 42,710.83

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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.