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Finding the Fourth Proportional to 21,264.56, 29,300.28 and 14,551.28

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Solution

The fourth proportional to 21,264.56, 29,300.28 and 14,551.28 is: 20,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264.56 : 29,300.28 = 14,551.28 : x
  2. Step 2: Convert to fraction form
    21,264.56/29,300.28 = 14,551.28/x
  3. Step 3: Cross multiply
    21,264.56x = 29,300.28 × 14,551.28
  4. Step 4: Simplify right side
    21,264.56x = 426,356,578.36
  5. Step 5: Solve for x
    x = 426,356,578.36/21,264.56
  6. Step 6: Final answer
    x = 20,050.10

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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.