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Finding the Fourth Proportional to 19,602.60, 27,051.12 and 10,649.90

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Solution

The fourth proportional to 19,602.60, 27,051.12 and 10,649.90 is: 14,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,602.60 : 27,051.12 = 10,649.90 : x
  2. Step 2: Convert to fraction form
    19,602.60/27,051.12 = 10,649.90/x
  3. Step 3: Cross multiply
    19,602.60x = 27,051.12 × 10,649.90
  4. Step 4: Simplify right side
    19,602.60x = 288,091,722.89
  5. Step 5: Solve for x
    x = 288,091,722.89/19,602.60
  6. Step 6: Final answer
    x = 14,696.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.