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Finding the Fourth Proportional to 56,221.81, 84,332.71 and 14,668.81

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Solution

The fourth proportional to 56,221.81, 84,332.71 and 14,668.81 is: 22,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,221.81 : 84,332.71 = 14,668.81 : x
  2. Step 2: Convert to fraction form
    56,221.81/84,332.71 = 14,668.81/x
  3. Step 3: Cross multiply
    56,221.81x = 84,332.71 × 14,668.81
  4. Step 4: Simplify right side
    56,221.81x = 1,237,060,781.65
  5. Step 5: Solve for x
    x = 1,237,060,781.65/56,221.81
  6. Step 6: Final answer
    x = 22,003.22

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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.