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Finding the Fourth Proportional to 22,393.36, 30,915.64 and 14,849.94

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Solution

The fourth proportional to 22,393.36, 30,915.64 and 14,849.94 is: 20,501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,393.36 : 30,915.64 = 14,849.94 : x
  2. Step 2: Convert to fraction form
    22,393.36/30,915.64 = 14,849.94/x
  3. Step 3: Cross multiply
    22,393.36x = 30,915.64 × 14,849.94
  4. Step 4: Simplify right side
    22,393.36x = 459,095,399.06
  5. Step 5: Solve for x
    x = 459,095,399.06/22,393.36
  6. Step 6: Final answer
    x = 20,501.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.