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Finding the Fourth Proportional to 21,957.04, 32,935.60 and 6,374.80

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Solution

The fourth proportional to 21,957.04, 32,935.60 and 6,374.80 is: 9,562.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.04 : 32,935.60 = 6,374.80 : x
  2. Step 2: Convert to fraction form
    21,957.04/32,935.60 = 6,374.80/x
  3. Step 3: Cross multiply
    21,957.04x = 32,935.60 × 6,374.80
  4. Step 4: Simplify right side
    21,957.04x = 209,957,862.88
  5. Step 5: Solve for x
    x = 209,957,862.88/21,957.04
  6. Step 6: Final answer
    x = 9,562.21

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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.