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Finding the Fourth Proportional to 8,866.64, 13,312.12 and 5,569.94

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Solution

The fourth proportional to 8,866.64, 13,312.12 and 5,569.94 is: 8,362.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.64 : 13,312.12 = 5,569.94 : x
  2. Step 2: Convert to fraction form
    8,866.64/13,312.12 = 5,569.94/x
  3. Step 3: Cross multiply
    8,866.64x = 13,312.12 × 5,569.94
  4. Step 4: Simplify right side
    8,866.64x = 74,147,709.67
  5. Step 5: Solve for x
    x = 74,147,709.67/8,866.64
  6. Step 6: Final answer
    x = 8,362.55

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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.