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Finding the Fourth Proportional to 66,043.54, 99,064.50 and 30,958.39

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Solution

The fourth proportional to 66,043.54, 99,064.50 and 30,958.39 is: 46,437.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,043.54 : 99,064.50 = 30,958.39 : x
  2. Step 2: Convert to fraction form
    66,043.54/99,064.50 = 30,958.39/x
  3. Step 3: Cross multiply
    66,043.54x = 99,064.50 × 30,958.39
  4. Step 4: Simplify right side
    66,043.54x = 3,066,877,426.16
  5. Step 5: Solve for x
    x = 3,066,877,426.16/66,043.54
  6. Step 6: Final answer
    x = 46,437.21

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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.