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Finding the Fourth Proportional to 19,773.60, 29,672.08 and 7,302.36

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Solution

The fourth proportional to 19,773.60, 29,672.08 and 7,302.36 is: 10,957.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.60 : 29,672.08 = 7,302.36 : x
  2. Step 2: Convert to fraction form
    19,773.60/29,672.08 = 7,302.36/x
  3. Step 3: Cross multiply
    19,773.60x = 29,672.08 × 7,302.36
  4. Step 4: Simplify right side
    19,773.60x = 216,676,210.11
  5. Step 5: Solve for x
    x = 216,676,210.11/19,773.60
  6. Step 6: Final answer
    x = 10,957.85

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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.