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Finding the Fourth Proportional to 29,348.93, 40,501.11 and 15,919.84

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Solution

The fourth proportional to 29,348.93, 40,501.11 and 15,919.84 is: 21,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,348.93 : 40,501.11 = 15,919.84 : x
  2. Step 2: Convert to fraction form
    29,348.93/40,501.11 = 15,919.84/x
  3. Step 3: Cross multiply
    29,348.93x = 40,501.11 × 15,919.84
  4. Step 4: Simplify right side
    29,348.93x = 644,771,301.35
  5. Step 5: Solve for x
    x = 644,771,301.35/29,348.93
  6. Step 6: Final answer
    x = 21,969.16

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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.