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Finding the Fourth Proportional to 45,646.73, 68,526.47 and 21,653.97

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Solution

The fourth proportional to 45,646.73, 68,526.47 and 21,653.97 is: 32,507.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,646.73 : 68,526.47 = 21,653.97 : x
  2. Step 2: Convert to fraction form
    45,646.73/68,526.47 = 21,653.97/x
  3. Step 3: Cross multiply
    45,646.73x = 68,526.47 × 21,653.97
  4. Step 4: Simplify right side
    45,646.73x = 1,483,870,125.59
  5. Step 5: Solve for x
    x = 1,483,870,125.59/45,646.73
  6. Step 6: Final answer
    x = 32,507.70

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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.