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Finding the Fourth Proportional to 56,811.29, 85,218.14 and 17,368.44

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Solution

The fourth proportional to 56,811.29, 85,218.14 and 17,368.44 is: 26,053.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,811.29 : 85,218.14 = 17,368.44 : x
  2. Step 2: Convert to fraction form
    56,811.29/85,218.14 = 17,368.44/x
  3. Step 3: Cross multiply
    56,811.29x = 85,218.14 × 17,368.44
  4. Step 4: Simplify right side
    56,811.29x = 1,480,105,875.35
  5. Step 5: Solve for x
    x = 1,480,105,875.35/56,811.29
  6. Step 6: Final answer
    x = 26,053.03

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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.