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Finding the Fourth Proportional to 17,205.40, 25,811.70 and 7,349.32

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Solution

The fourth proportional to 17,205.40, 25,811.70 and 7,349.32 is: 11,025.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,205.40 : 25,811.70 = 7,349.32 : x
  2. Step 2: Convert to fraction form
    17,205.40/25,811.70 = 7,349.32/x
  3. Step 3: Cross multiply
    17,205.40x = 25,811.70 × 7,349.32
  4. Step 4: Simplify right side
    17,205.40x = 189,698,443.04
  5. Step 5: Solve for x
    x = 189,698,443.04/17,205.40
  6. Step 6: Final answer
    x = 11,025.52

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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.