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Finding the Fourth Proportional to 56,900.48, 85,359.95 and 21,364.59

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Solution

The fourth proportional to 56,900.48, 85,359.95 and 21,364.59 is: 32,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,900.48 : 85,359.95 = 21,364.59 : x
  2. Step 2: Convert to fraction form
    56,900.48/85,359.95 = 21,364.59/x
  3. Step 3: Cross multiply
    56,900.48x = 85,359.95 × 21,364.59
  4. Step 4: Simplify right side
    56,900.48x = 1,823,680,227.35
  5. Step 5: Solve for x
    x = 1,823,680,227.35/56,900.48
  6. Step 6: Final answer
    x = 32,050.35

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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.