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Finding the Fourth Proportional to 35,652.40, 53,478.60 and 18,156.40

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Solution

The fourth proportional to 35,652.40, 53,478.60 and 18,156.40 is: 27,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,652.40 : 53,478.60 = 18,156.40 : x
  2. Step 2: Convert to fraction form
    35,652.40/53,478.60 = 18,156.40/x
  3. Step 3: Cross multiply
    35,652.40x = 53,478.60 × 18,156.40
  4. Step 4: Simplify right side
    35,652.40x = 970,978,853.04
  5. Step 5: Solve for x
    x = 970,978,853.04/35,652.40
  6. Step 6: Final answer
    x = 27,234.60

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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.