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Finding the Fourth Proportional to 11,435.80, 16,056.20 and 11,435.80

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Solution

The fourth proportional to 11,435.80, 16,056.20 and 11,435.80 is: 16,056.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,435.80 : 16,056.20 = 11,435.80 : x
  2. Step 2: Convert to fraction form
    11,435.80/16,056.20 = 11,435.80/x
  3. Step 3: Cross multiply
    11,435.80x = 16,056.20 × 11,435.80
  4. Step 4: Simplify right side
    11,435.80x = 183,615,491.96
  5. Step 5: Solve for x
    x = 183,615,491.96/11,435.80
  6. Step 6: Final answer
    x = 16,056.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.