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Finding the Fourth Proportional to 69,284.60, 95,590.96 and 42,399.08

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Solution

The fourth proportional to 69,284.60, 95,590.96 and 42,399.08 is: 58,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,284.60 : 95,590.96 = 42,399.08 : x
  2. Step 2: Convert to fraction form
    69,284.60/95,590.96 = 42,399.08/x
  3. Step 3: Cross multiply
    69,284.60x = 95,590.96 × 42,399.08
  4. Step 4: Simplify right side
    69,284.60x = 4,052,968,760.32
  5. Step 5: Solve for x
    x = 4,052,968,760.32/69,284.60
  6. Step 6: Final answer
    x = 58,497.40

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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.