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Finding the Fourth Proportional to 60,834.61, 91,252.50 and 21,392.05

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Solution

The fourth proportional to 60,834.61, 91,252.50 and 21,392.05 is: 32,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,834.61 : 91,252.50 = 21,392.05 : x
  2. Step 2: Convert to fraction form
    60,834.61/91,252.50 = 21,392.05/x
  3. Step 3: Cross multiply
    60,834.61x = 91,252.50 × 21,392.05
  4. Step 4: Simplify right side
    60,834.61x = 1,952,078,042.63
  5. Step 5: Solve for x
    x = 1,952,078,042.63/60,834.61
  6. Step 6: Final answer
    x = 32,088.28

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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.