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Finding the Fourth Proportional to 43,307.66, 64,965.75 and 18,001.95

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Solution

The fourth proportional to 43,307.66, 64,965.75 and 18,001.95 is: 27,004.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,307.66 : 64,965.75 = 18,001.95 : x
  2. Step 2: Convert to fraction form
    43,307.66/64,965.75 = 18,001.95/x
  3. Step 3: Cross multiply
    43,307.66x = 64,965.75 × 18,001.95
  4. Step 4: Simplify right side
    43,307.66x = 1,169,509,872.08
  5. Step 5: Solve for x
    x = 1,169,509,872.08/43,307.66
  6. Step 6: Final answer
    x = 27,004.69

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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.