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Finding the Fourth Proportional to 16,802.64, 25,210.82 and 11,861.64

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Solution

The fourth proportional to 16,802.64, 25,210.82 and 11,861.64 is: 17,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,802.64 : 25,210.82 = 11,861.64 : x
  2. Step 2: Convert to fraction form
    16,802.64/25,210.82 = 11,861.64/x
  3. Step 3: Cross multiply
    16,802.64x = 25,210.82 × 11,861.64
  4. Step 4: Simplify right side
    16,802.64x = 299,041,670.94
  5. Step 5: Solve for x
    x = 299,041,670.94/16,802.64
  6. Step 6: Final answer
    x = 17,797.30

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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.