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Finding the Fourth Proportional to 10,807.60, 16,211.40 and 10,564.60

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Solution

The fourth proportional to 10,807.60, 16,211.40 and 10,564.60 is: 15,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,807.60 : 16,211.40 = 10,564.60 : x
  2. Step 2: Convert to fraction form
    10,807.60/16,211.40 = 10,564.60/x
  3. Step 3: Cross multiply
    10,807.60x = 16,211.40 × 10,564.60
  4. Step 4: Simplify right side
    10,807.60x = 171,266,956.44
  5. Step 5: Solve for x
    x = 171,266,956.44/10,807.60
  6. Step 6: Final answer
    x = 15,846.90

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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.