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Finding the Fourth Proportional to 14,627.51, 21,913.71 and 7,223.30

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Solution

The fourth proportional to 14,627.51, 21,913.71 and 7,223.30 is: 10,821.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,627.51 : 21,913.71 = 7,223.30 : x
  2. Step 2: Convert to fraction form
    14,627.51/21,913.71 = 7,223.30/x
  3. Step 3: Cross multiply
    14,627.51x = 21,913.71 × 7,223.30
  4. Step 4: Simplify right side
    14,627.51x = 158,289,301.44
  5. Step 5: Solve for x
    x = 158,289,301.44/14,627.51
  6. Step 6: Final answer
    x = 10,821.34

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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.