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Finding the Fourth Proportional to 8,907,708.76, 13,368,280.44 and 6,517,719.52

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Solution

The fourth proportional to 8,907,708.76, 13,368,280.44 and 6,517,719.52 is: 9,781,494.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907,708.76 : 13,368,280.44 = 6,517,719.52 : x
  2. Step 2: Convert to fraction form
    8,907,708.76/13,368,280.44 = 6,517,719.52/x
  3. Step 3: Cross multiply
    8,907,708.76x = 13,368,280.44 × 6,517,719.52
  4. Step 4: Simplify right side
    8,907,708.76x = 87,130,702,372,622.17
  5. Step 5: Solve for x
    x = 87,130,702,372,622.17/8,907,708.76
  6. Step 6: Final answer
    x = 9,781,494.29

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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.