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Finding the Fourth Proportional to 11,196.70, 16,807.20 and 7,041.40

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Solution

The fourth proportional to 11,196.70, 16,807.20 and 7,041.40 is: 10,569.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,196.70 : 16,807.20 = 7,041.40 : x
  2. Step 2: Convert to fraction form
    11,196.70/16,807.20 = 7,041.40/x
  3. Step 3: Cross multiply
    11,196.70x = 16,807.20 × 7,041.40
  4. Step 4: Simplify right side
    11,196.70x = 118,346,218.08
  5. Step 5: Solve for x
    x = 118,346,218.08/11,196.70
  6. Step 6: Final answer
    x = 10,569.74

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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.