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Finding the Fourth Proportional to 16,670.64, 24,988.68 and 7,898.88

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Solution

The fourth proportional to 16,670.64, 24,988.68 and 7,898.88 is: 11,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,670.64 : 24,988.68 = 7,898.88 : x
  2. Step 2: Convert to fraction form
    16,670.64/24,988.68 = 7,898.88/x
  3. Step 3: Cross multiply
    16,670.64x = 24,988.68 × 7,898.88
  4. Step 4: Simplify right side
    16,670.64x = 197,382,584.68
  5. Step 5: Solve for x
    x = 197,382,584.68/16,670.64
  6. Step 6: Final answer
    x = 11,840.13

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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.