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Finding the Fourth Proportional to 8,253.90, 12,368.70 and 7,014.60

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Solution

The fourth proportional to 8,253.90, 12,368.70 and 7,014.60 is: 10,511.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.90 : 12,368.70 = 7,014.60 : x
  2. Step 2: Convert to fraction form
    8,253.90/12,368.70 = 7,014.60/x
  3. Step 3: Cross multiply
    8,253.90x = 12,368.70 × 7,014.60
  4. Step 4: Simplify right side
    8,253.90x = 86,761,483.02
  5. Step 5: Solve for x
    x = 86,761,483.02/8,253.90
  6. Step 6: Final answer
    x = 10,511.57

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1.5x scale

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.