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Finding the Fourth Proportional to 66,608.80, 99,864.60 and 27,145.60

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Solution

The fourth proportional to 66,608.80, 99,864.60 and 27,145.60 is: 40,698.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,608.80 : 99,864.60 = 27,145.60 : x
  2. Step 2: Convert to fraction form
    66,608.80/99,864.60 = 27,145.60/x
  3. Step 3: Cross multiply
    66,608.80x = 99,864.60 × 27,145.60
  4. Step 4: Simplify right side
    66,608.80x = 2,710,884,485.76
  5. Step 5: Solve for x
    x = 2,710,884,485.76/66,608.80
  6. Step 6: Final answer
    x = 40,698.59

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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.