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Finding the Fourth Proportional to 29,341.90, 40,483.29 and 19,135.90

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Solution

The fourth proportional to 29,341.90, 40,483.29 and 19,135.90 is: 26,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,341.90 : 40,483.29 = 19,135.90 : x
  2. Step 2: Convert to fraction form
    29,341.90/40,483.29 = 19,135.90/x
  3. Step 3: Cross multiply
    29,341.90x = 40,483.29 × 19,135.90
  4. Step 4: Simplify right side
    29,341.90x = 774,684,189.11
  5. Step 5: Solve for x
    x = 774,684,189.11/29,341.90
  6. Step 6: Final answer
    x = 26,401.98

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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.