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Finding the Fourth Proportional to 61,241.80, 91,862.70 and 40,246.60

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Solution

The fourth proportional to 61,241.80, 91,862.70 and 40,246.60 is: 60,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,241.80 : 91,862.70 = 40,246.60 : x
  2. Step 2: Convert to fraction form
    61,241.80/91,862.70 = 40,246.60/x
  3. Step 3: Cross multiply
    61,241.80x = 91,862.70 × 40,246.60
  4. Step 4: Simplify right side
    61,241.80x = 3,697,161,341.82
  5. Step 5: Solve for x
    x = 3,697,161,341.82/61,241.80
  6. Step 6: Final answer
    x = 60,369.90

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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.