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Finding the Fourth Proportional to 85,280.98, 117,690.96 and 47,562.52

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Solution

The fourth proportional to 85,280.98, 117,690.96 and 47,562.52 is: 65,638.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,280.98 : 117,690.96 = 47,562.52 : x
  2. Step 2: Convert to fraction form
    85,280.98/117,690.96 = 47,562.52/x
  3. Step 3: Cross multiply
    85,280.98x = 117,690.96 × 47,562.52
  4. Step 4: Simplify right side
    85,280.98x = 5,597,678,638.82
  5. Step 5: Solve for x
    x = 5,597,678,638.82/85,280.98
  6. Step 6: Final answer
    x = 65,638.07

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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.