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Finding the Fourth Proportional to 61,935.98, 85,471.56 and 35,078.45

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Solution

The fourth proportional to 61,935.98, 85,471.56 and 35,078.45 is: 48,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,935.98 : 85,471.56 = 35,078.45 : x
  2. Step 2: Convert to fraction form
    61,935.98/85,471.56 = 35,078.45/x
  3. Step 3: Cross multiply
    61,935.98x = 85,471.56 × 35,078.45
  4. Step 4: Simplify right side
    61,935.98x = 2,998,209,416.52
  5. Step 5: Solve for x
    x = 2,998,209,416.52/61,935.98
  6. Step 6: Final answer
    x = 48,408.21

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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.