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Finding the Fourth Proportional to 56,812.79, 85,219.19 and 17,369.91

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Solution

The fourth proportional to 56,812.79, 85,219.19 and 17,369.91 is: 26,054.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,812.79 : 85,219.19 = 17,369.91 : x
  2. Step 2: Convert to fraction form
    56,812.79/85,219.19 = 17,369.91/x
  3. Step 3: Cross multiply
    56,812.79x = 85,219.19 × 17,369.91
  4. Step 4: Simplify right side
    56,812.79x = 1,480,249,279.34
  5. Step 5: Solve for x
    x = 1,480,249,279.34/56,812.79
  6. Step 6: Final answer
    x = 26,054.86

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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.