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Finding the Fourth Proportional to 15,203.76, 22,805.48 and 4,815.51

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Solution

The fourth proportional to 15,203.76, 22,805.48 and 4,815.51 is: 7,223.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203.76 : 22,805.48 = 4,815.51 : x
  2. Step 2: Convert to fraction form
    15,203.76/22,805.48 = 4,815.51/x
  3. Step 3: Cross multiply
    15,203.76x = 22,805.48 × 4,815.51
  4. Step 4: Simplify right side
    15,203.76x = 109,819,878.89
  5. Step 5: Solve for x
    x = 109,819,878.89/15,203.76
  6. Step 6: Final answer
    x = 7,223.21

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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.