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Finding the Fourth Proportional to 95,967.15, 143,980.72 and 28,499.57

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Solution

The fourth proportional to 95,967.15, 143,980.72 and 28,499.57 is: 42,758.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,967.15 : 143,980.72 = 28,499.57 : x
  2. Step 2: Convert to fraction form
    95,967.15/143,980.72 = 28,499.57/x
  3. Step 3: Cross multiply
    95,967.15x = 143,980.72 × 28,499.57
  4. Step 4: Simplify right side
    95,967.15x = 4,103,388,772.03
  5. Step 5: Solve for x
    x = 4,103,388,772.03/95,967.15
  6. Step 6: Final answer
    x = 42,758.26

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1.5x scale

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.