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Finding the Fourth Proportional to 66,066.52, 99,129.12 and 26,700.52

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Solution

The fourth proportional to 66,066.52, 99,129.12 and 26,700.52 is: 40,062.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,066.52 : 99,129.12 = 26,700.52 : x
  2. Step 2: Convert to fraction form
    66,066.52/99,129.12 = 26,700.52/x
  3. Step 3: Cross multiply
    66,066.52x = 99,129.12 × 26,700.52
  4. Step 4: Simplify right side
    66,066.52x = 2,646,799,051.14
  5. Step 5: Solve for x
    x = 2,646,799,051.14/66,066.52
  6. Step 6: Final answer
    x = 40,062.64

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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.