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Finding the Fourth Proportional to 14,921.32, 22,367.04 and 7,135.60

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Solution

The fourth proportional to 14,921.32, 22,367.04 and 7,135.60 is: 10,696.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.32 : 22,367.04 = 7,135.60 : x
  2. Step 2: Convert to fraction form
    14,921.32/22,367.04 = 7,135.60/x
  3. Step 3: Cross multiply
    14,921.32x = 22,367.04 × 7,135.60
  4. Step 4: Simplify right side
    14,921.32x = 159,602,250.62
  5. Step 5: Solve for x
    x = 159,602,250.62/14,921.32
  6. Step 6: Final answer
    x = 10,696.26

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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.