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Finding the Fourth Proportional to 45,189.42, 67,784.16 and 39,350.16

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Solution

The fourth proportional to 45,189.42, 67,784.16 and 39,350.16 is: 59,025.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,189.42 : 67,784.16 = 39,350.16 : x
  2. Step 2: Convert to fraction form
    45,189.42/67,784.16 = 39,350.16/x
  3. Step 3: Cross multiply
    45,189.42x = 67,784.16 × 39,350.16
  4. Step 4: Simplify right side
    45,189.42x = 2,667,317,541.47
  5. Step 5: Solve for x
    x = 2,667,317,541.47/45,189.42
  6. Step 6: Final answer
    x = 59,025.27

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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.