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Finding the Fourth Proportional to 61,173.36, 84,415.50 and 34,310.88

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Solution

The fourth proportional to 61,173.36, 84,415.50 and 34,310.88 is: 47,346.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,173.36 : 84,415.50 = 34,310.88 : x
  2. Step 2: Convert to fraction form
    61,173.36/84,415.50 = 34,310.88/x
  3. Step 3: Cross multiply
    61,173.36x = 84,415.50 × 34,310.88
  4. Step 4: Simplify right side
    61,173.36x = 2,896,370,090.64
  5. Step 5: Solve for x
    x = 2,896,370,090.64/61,173.36
  6. Step 6: Final answer
    x = 47,346.92

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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.