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Finding the Fourth Proportional to 29,497.52, 40,704.12 and 16,919.60

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Solution

The fourth proportional to 29,497.52, 40,704.12 and 16,919.60 is: 23,347.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,497.52 : 40,704.12 = 16,919.60 : x
  2. Step 2: Convert to fraction form
    29,497.52/40,704.12 = 16,919.60/x
  3. Step 3: Cross multiply
    29,497.52x = 40,704.12 × 16,919.60
  4. Step 4: Simplify right side
    29,497.52x = 688,697,428.75
  5. Step 5: Solve for x
    x = 688,697,428.75/29,497.52
  6. Step 6: Final answer
    x = 23,347.64

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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.