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Finding the Fourth Proportional to 66,412.61, 99,627.56 and 26,971.01

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Solution

The fourth proportional to 66,412.61, 99,627.56 and 26,971.01 is: 40,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,412.61 : 99,627.56 = 26,971.01 : x
  2. Step 2: Convert to fraction form
    66,412.61/99,627.56 = 26,971.01/x
  3. Step 3: Cross multiply
    66,412.61x = 99,627.56 × 26,971.01
  4. Step 4: Simplify right side
    66,412.61x = 2,687,055,782.18
  5. Step 5: Solve for x
    x = 2,687,055,782.18/66,412.61
  6. Step 6: Final answer
    x = 40,460.02

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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.