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Finding the Fourth Proportional to 65,155.44, 89,914.68 and 35,347.44

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Solution

The fourth proportional to 65,155.44, 89,914.68 and 35,347.44 is: 48,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,155.44 : 89,914.68 = 35,347.44 : x
  2. Step 2: Convert to fraction form
    65,155.44/89,914.68 = 35,347.44/x
  3. Step 3: Cross multiply
    65,155.44x = 89,914.68 × 35,347.44
  4. Step 4: Simplify right side
    65,155.44x = 3,178,253,756.42
  5. Step 5: Solve for x
    x = 3,178,253,756.42/65,155.44
  6. Step 6: Final answer
    x = 48,779.56

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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.