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Finding the Fourth Proportional to 66,356.48, 99,536.64 and 17,108.48

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Solution

The fourth proportional to 66,356.48, 99,536.64 and 17,108.48 is: 25,663.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,356.48 : 99,536.64 = 17,108.48 : x
  2. Step 2: Convert to fraction form
    66,356.48/99,536.64 = 17,108.48/x
  3. Step 3: Cross multiply
    66,356.48x = 99,536.64 × 17,108.48
  4. Step 4: Simplify right side
    66,356.48x = 1,702,920,614.71
  5. Step 5: Solve for x
    x = 1,702,920,614.71/66,356.48
  6. Step 6: Final answer
    x = 25,663.22

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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.