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Finding the Fourth Proportional to 40,649.90, 60,968.68 and 11,070.06

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Solution

The fourth proportional to 40,649.90, 60,968.68 and 11,070.06 is: 16,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,649.90 : 60,968.68 = 11,070.06 : x
  2. Step 2: Convert to fraction form
    40,649.90/60,968.68 = 11,070.06/x
  3. Step 3: Cross multiply
    40,649.90x = 60,968.68 × 11,070.06
  4. Step 4: Simplify right side
    40,649.90x = 674,926,689.41
  5. Step 5: Solve for x
    x = 674,926,689.41/40,649.90
  6. Step 6: Final answer
    x = 16,603.41

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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.