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Finding the Fourth Proportional to 29,491, 40,697.58 and 16,243

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Solution

The fourth proportional to 29,491, 40,697.58 and 16,243 is: 22,415.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,491 : 40,697.58 = 16,243 : x
  2. Step 2: Convert to fraction form
    29,491/40,697.58 = 16,243/x
  3. Step 3: Cross multiply
    29,491x = 40,697.58 × 16,243
  4. Step 4: Simplify right side
    29,491x = 661,050,791.94
  5. Step 5: Solve for x
    x = 661,050,791.94/29,491
  6. Step 6: Final answer
    x = 22,415.34

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1.5x scale

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.