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Finding the Fourth Proportional to 8,975.44, 13,460.28 and 2,970.40

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Solution

The fourth proportional to 8,975.44, 13,460.28 and 2,970.40 is: 4,454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.44 : 13,460.28 = 2,970.40 : x
  2. Step 2: Convert to fraction form
    8,975.44/13,460.28 = 2,970.40/x
  3. Step 3: Cross multiply
    8,975.44x = 13,460.28 × 2,970.40
  4. Step 4: Simplify right side
    8,975.44x = 39,982,415.71
  5. Step 5: Solve for x
    x = 39,982,415.71/8,975.44
  6. Step 6: Final answer
    x = 4,454.65

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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.