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Finding the Fourth Proportional to 8,955, 13,432.50 and 3,483

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Solution

The fourth proportional to 8,955, 13,432.50 and 3,483 is: 5,224.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955 : 13,432.50 = 3,483 : x
  2. Step 2: Convert to fraction form
    8,955/13,432.50 = 3,483/x
  3. Step 3: Cross multiply
    8,955x = 13,432.50 × 3,483
  4. Step 4: Simplify right side
    8,955x = 46,785,397.50
  5. Step 5: Solve for x
    x = 46,785,397.50/8,955
  6. Step 6: Final answer
    x = 5,224.50

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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.