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Finding the Fourth Proportional to 61,008.60, 91,334.70 and 43,512.60

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Solution

The fourth proportional to 61,008.60, 91,334.70 and 43,512.60 is: 65,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,008.60 : 91,334.70 = 43,512.60 : x
  2. Step 2: Convert to fraction form
    61,008.60/91,334.70 = 43,512.60/x
  3. Step 3: Cross multiply
    61,008.60x = 91,334.70 × 43,512.60
  4. Step 4: Simplify right side
    61,008.60x = 3,974,210,267.22
  5. Step 5: Solve for x
    x = 3,974,210,267.22/61,008.60
  6. Step 6: Final answer
    x = 65,141.80

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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.