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Finding the Fourth Proportional to 61,935.98, 85,507.11 and 40,776.75

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Solution

The fourth proportional to 61,935.98, 85,507.11 and 40,776.75 is: 56,295.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,935.98 : 85,507.11 = 40,776.75 : x
  2. Step 2: Convert to fraction form
    61,935.98/85,507.11 = 40,776.75/x
  3. Step 3: Cross multiply
    61,935.98x = 85,507.11 × 40,776.75
  4. Step 4: Simplify right side
    61,935.98x = 3,486,702,047.69
  5. Step 5: Solve for x
    x = 3,486,702,047.69/61,935.98
  6. Step 6: Final answer
    x = 56,295.26

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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.