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Finding the Fourth Proportional to 56,874.61, 85,363.35 and 28,814.05

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Solution

The fourth proportional to 56,874.61, 85,363.35 and 28,814.05 is: 43,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,874.61 : 85,363.35 = 28,814.05 : x
  2. Step 2: Convert to fraction form
    56,874.61/85,363.35 = 28,814.05/x
  3. Step 3: Cross multiply
    56,874.61x = 85,363.35 × 28,814.05
  4. Step 4: Simplify right side
    56,874.61x = 2,459,663,835.07
  5. Step 5: Solve for x
    x = 2,459,663,835.07/56,874.61
  6. Step 6: Final answer
    x = 43,247.13

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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.