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Finding the Fourth Proportional to 66,338.48, 99,507.49 and 26,895.50

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Solution

The fourth proportional to 66,338.48, 99,507.49 and 26,895.50 is: 40,343.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,338.48 : 99,507.49 = 26,895.50 : x
  2. Step 2: Convert to fraction form
    66,338.48/99,507.49 = 26,895.50/x
  3. Step 3: Cross multiply
    66,338.48x = 99,507.49 × 26,895.50
  4. Step 4: Simplify right side
    66,338.48x = 2,676,303,697.30
  5. Step 5: Solve for x
    x = 2,676,303,697.30/66,338.48
  6. Step 6: Final answer
    x = 40,343.16

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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.