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Finding the Fourth Proportional to 66,173.58, 99,260.14 and 28,728.77

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Solution

The fourth proportional to 66,173.58, 99,260.14 and 28,728.77 is: 43,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,173.58 : 99,260.14 = 28,728.77 : x
  2. Step 2: Convert to fraction form
    66,173.58/99,260.14 = 28,728.77/x
  3. Step 3: Cross multiply
    66,173.58x = 99,260.14 × 28,728.77
  4. Step 4: Simplify right side
    66,173.58x = 2,851,621,732.23
  5. Step 5: Solve for x
    x = 2,851,621,732.23/66,173.58
  6. Step 6: Final answer
    x = 43,093.06

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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.