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Finding the Fourth Proportional to 11,955.60, 17,909.64 and 9,346.32

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Solution

The fourth proportional to 11,955.60, 17,909.64 and 9,346.32 is: 14,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.60 : 17,909.64 = 9,346.32 : x
  2. Step 2: Convert to fraction form
    11,955.60/17,909.64 = 9,346.32/x
  3. Step 3: Cross multiply
    11,955.60x = 17,909.64 × 9,346.32
  4. Step 4: Simplify right side
    11,955.60x = 167,389,226.52
  5. Step 5: Solve for x
    x = 167,389,226.52/11,955.60
  6. Step 6: Final answer
    x = 14,000.91

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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.