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Finding the Fourth Proportional to 8,902,464.60, 13,353,696.90 and 8,807,986.20

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Solution

The fourth proportional to 8,902,464.60, 13,353,696.90 and 8,807,986.20 is: 13,211,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902,464.60 : 13,353,696.90 = 8,807,986.20 : x
  2. Step 2: Convert to fraction form
    8,902,464.60/13,353,696.90 = 8,807,986.20/x
  3. Step 3: Cross multiply
    8,902,464.60x = 13,353,696.90 × 8,807,986.20
  4. Step 4: Simplify right side
    8,902,464.60x = 117,619,178,014,182.77
  5. Step 5: Solve for x
    x = 117,619,178,014,182.77/8,902,464.60
  6. Step 6: Final answer
    x = 13,211,979.30

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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.