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Finding the Fourth Proportional to 15,056, 20,751.36 and 14,153.12

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Solution

The fourth proportional to 15,056, 20,751.36 and 14,153.12 is: 19,506.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,056 : 20,751.36 = 14,153.12 : x
  2. Step 2: Convert to fraction form
    15,056/20,751.36 = 14,153.12/x
  3. Step 3: Cross multiply
    15,056x = 20,751.36 × 14,153.12
  4. Step 4: Simplify right side
    15,056x = 293,696,488.24
  5. Step 5: Solve for x
    x = 293,696,488.24/15,056
  6. Step 6: Final answer
    x = 19,506.94

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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.