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Finding the Fourth Proportional to 8,970.89, 13,443.98 and 4,579.17

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Solution

The fourth proportional to 8,970.89, 13,443.98 and 4,579.17 is: 6,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.89 : 13,443.98 = 4,579.17 : x
  2. Step 2: Convert to fraction form
    8,970.89/13,443.98 = 4,579.17/x
  3. Step 3: Cross multiply
    8,970.89x = 13,443.98 × 4,579.17
  4. Step 4: Simplify right side
    8,970.89x = 61,562,269.90
  5. Step 5: Solve for x
    x = 61,562,269.90/8,970.89
  6. Step 6: Final answer
    x = 6,862.45

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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.