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Finding the Fourth Proportional to 10,846.40, 16,258.80 and 4,992.80

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Solution

The fourth proportional to 10,846.40, 16,258.80 and 4,992.80 is: 7,484.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,846.40 : 16,258.80 = 4,992.80 : x
  2. Step 2: Convert to fraction form
    10,846.40/16,258.80 = 4,992.80/x
  3. Step 3: Cross multiply
    10,846.40x = 16,258.80 × 4,992.80
  4. Step 4: Simplify right side
    10,846.40x = 81,176,936.64
  5. Step 5: Solve for x
    x = 81,176,936.64/10,846.40
  6. Step 6: Final answer
    x = 7,484.23

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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.