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Finding the Fourth Proportional to 61,797.12, 85,292.70 and 34,940.76

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Solution

The fourth proportional to 61,797.12, 85,292.70 and 34,940.76 is: 48,225.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,797.12 : 85,292.70 = 34,940.76 : x
  2. Step 2: Convert to fraction form
    61,797.12/85,292.70 = 34,940.76/x
  3. Step 3: Cross multiply
    61,797.12x = 85,292.70 × 34,940.76
  4. Step 4: Simplify right side
    61,797.12x = 2,980,191,760.45
  5. Step 5: Solve for x
    x = 2,980,191,760.45/61,797.12
  6. Step 6: Final answer
    x = 48,225.42

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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.