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Finding the Fourth Proportional to 10,961.36, 16,442.06 and 7,068.50

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Solution

The fourth proportional to 10,961.36, 16,442.06 and 7,068.50 is: 10,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.36 : 16,442.06 = 7,068.50 : x
  2. Step 2: Convert to fraction form
    10,961.36/16,442.06 = 7,068.50/x
  3. Step 3: Cross multiply
    10,961.36x = 16,442.06 × 7,068.50
  4. Step 4: Simplify right side
    10,961.36x = 116,220,645.21
  5. Step 5: Solve for x
    x = 116,220,645.21/10,961.36
  6. Step 6: Final answer
    x = 10,602.76

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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.