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Finding the Fourth Proportional to 66,066.69, 99,127.80 and 41,127.60

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Solution

The fourth proportional to 66,066.69, 99,127.80 and 41,127.60 is: 61,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,066.69 : 99,127.80 = 41,127.60 : x
  2. Step 2: Convert to fraction form
    66,066.69/99,127.80 = 41,127.60/x
  3. Step 3: Cross multiply
    66,066.69x = 99,127.80 × 41,127.60
  4. Step 4: Simplify right side
    66,066.69x = 4,076,888,507.28
  5. Step 5: Solve for x
    x = 4,076,888,507.28/66,066.69
  6. Step 6: Final answer
    x = 61,708.68

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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.