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Finding the Fourth Proportional to 11,959.60, 17,915.64 and 9,350.32

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Solution

The fourth proportional to 11,959.60, 17,915.64 and 9,350.32 is: 14,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,959.60 : 17,915.64 = 9,350.32 : x
  2. Step 2: Convert to fraction form
    11,959.60/17,915.64 = 9,350.32/x
  3. Step 3: Cross multiply
    11,959.60x = 17,915.64 × 9,350.32
  4. Step 4: Simplify right side
    11,959.60x = 167,516,967.00
  5. Step 5: Solve for x
    x = 167,516,967.00/11,959.60
  6. Step 6: Final answer
    x = 14,006.90

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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.