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Finding the Fourth Proportional to 56,534.56, 78,020.40 and 32,664.40

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Solution

The fourth proportional to 56,534.56, 78,020.40 and 32,664.40 is: 45,078.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,534.56 : 78,020.40 = 32,664.40 : x
  2. Step 2: Convert to fraction form
    56,534.56/78,020.40 = 32,664.40/x
  3. Step 3: Cross multiply
    56,534.56x = 78,020.40 × 32,664.40
  4. Step 4: Simplify right side
    56,534.56x = 2,548,489,553.76
  5. Step 5: Solve for x
    x = 2,548,489,553.76/56,534.56
  6. Step 6: Final answer
    x = 45,078.44

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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.