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Finding the Fourth Proportional to 10,569.12, 15,858 and 3,552

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Solution

The fourth proportional to 10,569.12, 15,858 and 3,552 is: 5,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,569.12 : 15,858 = 3,552 : x
  2. Step 2: Convert to fraction form
    10,569.12/15,858 = 3,552/x
  3. Step 3: Cross multiply
    10,569.12x = 15,858 × 3,552
  4. Step 4: Simplify right side
    10,569.12x = 56,327,616
  5. Step 5: Solve for x
    x = 56,327,616/10,569.12
  6. Step 6: Final answer
    x = 5,329.45

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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.