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Finding the Fourth Proportional to 42,653.63, 63,953.04 and 17,710.90

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Solution

The fourth proportional to 42,653.63, 63,953.04 and 17,710.90 is: 26,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,653.63 : 63,953.04 = 17,710.90 : x
  2. Step 2: Convert to fraction form
    42,653.63/63,953.04 = 17,710.90/x
  3. Step 3: Cross multiply
    42,653.63x = 63,953.04 × 17,710.90
  4. Step 4: Simplify right side
    42,653.63x = 1,132,665,896.14
  5. Step 5: Solve for x
    x = 1,132,665,896.14/42,653.63
  6. Step 6: Final answer
    x = 26,554.97

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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.