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Finding the Fourth Proportional to 57,602.02, 86,412.12 and 20,161.18

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Solution

The fourth proportional to 57,602.02, 86,412.12 and 20,161.18 is: 30,244.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,602.02 : 86,412.12 = 20,161.18 : x
  2. Step 2: Convert to fraction form
    57,602.02/86,412.12 = 20,161.18/x
  3. Step 3: Cross multiply
    57,602.02x = 86,412.12 × 20,161.18
  4. Step 4: Simplify right side
    57,602.02x = 1,742,170,305.50
  5. Step 5: Solve for x
    x = 1,742,170,305.50/57,602.02
  6. Step 6: Final answer
    x = 30,244.95

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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.