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Finding the Fourth Proportional to 66,784.48, 100,186.48 and 20,041.04

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Solution

The fourth proportional to 66,784.48, 100,186.48 and 20,041.04 is: 30,064.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,784.48 : 100,186.48 = 20,041.04 : x
  2. Step 2: Convert to fraction form
    66,784.48/100,186.48 = 20,041.04/x
  3. Step 3: Cross multiply
    66,784.48x = 100,186.48 × 20,041.04
  4. Step 4: Simplify right side
    66,784.48x = 2,007,841,253.14
  5. Step 5: Solve for x
    x = 2,007,841,253.14/66,784.48
  6. Step 6: Final answer
    x = 30,064.49

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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.