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Finding the Fourth Proportional to 16,415.40, 24,618.30 and 6,551.40

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Solution

The fourth proportional to 16,415.40, 24,618.30 and 6,551.40 is: 9,825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,415.40 : 24,618.30 = 6,551.40 : x
  2. Step 2: Convert to fraction form
    16,415.40/24,618.30 = 6,551.40/x
  3. Step 3: Cross multiply
    16,415.40x = 24,618.30 × 6,551.40
  4. Step 4: Simplify right side
    16,415.40x = 161,284,330.62
  5. Step 5: Solve for x
    x = 161,284,330.62/16,415.40
  6. Step 6: Final answer
    x = 9,825.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.