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Finding the Fourth Proportional to 66,090.89, 99,149.03 and 26,651.99

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Solution

The fourth proportional to 66,090.89, 99,149.03 and 26,651.99 is: 39,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,090.89 : 99,149.03 = 26,651.99 : x
  2. Step 2: Convert to fraction form
    66,090.89/99,149.03 = 26,651.99/x
  3. Step 3: Cross multiply
    66,090.89x = 99,149.03 × 26,651.99
  4. Step 4: Simplify right side
    66,090.89x = 2,642,518,327.06
  5. Step 5: Solve for x
    x = 2,642,518,327.06/66,090.89
  6. Step 6: Final answer
    x = 39,983.10

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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.