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Finding the Fourth Proportional to 29,641.99, 40,907.09 and 16,897.18

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Solution

The fourth proportional to 29,641.99, 40,907.09 and 16,897.18 is: 23,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,641.99 : 40,907.09 = 16,897.18 : x
  2. Step 2: Convert to fraction form
    29,641.99/40,907.09 = 16,897.18/x
  3. Step 3: Cross multiply
    29,641.99x = 40,907.09 × 16,897.18
  4. Step 4: Simplify right side
    29,641.99x = 691,214,463.01
  5. Step 5: Solve for x
    x = 691,214,463.01/29,641.99
  6. Step 6: Final answer
    x = 23,318.76

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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.