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Finding the Fourth Proportional to 8,532.76, 12,796.55 and 2,985.07

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Solution

The fourth proportional to 8,532.76, 12,796.55 and 2,985.07 is: 4,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532.76 : 12,796.55 = 2,985.07 : x
  2. Step 2: Convert to fraction form
    8,532.76/12,796.55 = 2,985.07/x
  3. Step 3: Cross multiply
    8,532.76x = 12,796.55 × 2,985.07
  4. Step 4: Simplify right side
    8,532.76x = 38,198,597.51
  5. Step 5: Solve for x
    x = 38,198,597.51/8,532.76
  6. Step 6: Final answer
    x = 4,476.70

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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.