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Finding the Fourth Proportional to 8,296,939.60, 12,445,409.40 and 7,793,054.80

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Solution

The fourth proportional to 8,296,939.60, 12,445,409.40 and 7,793,054.80 is: 11,689,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,296,939.60 : 12,445,409.40 = 7,793,054.80 : x
  2. Step 2: Convert to fraction form
    8,296,939.60/12,445,409.40 = 7,793,054.80/x
  3. Step 3: Cross multiply
    8,296,939.60x = 12,445,409.40 × 7,793,054.80
  4. Step 4: Simplify right side
    8,296,939.60x = 96,987,757,462,635.12
  5. Step 5: Solve for x
    x = 96,987,757,462,635.12/8,296,939.60
  6. Step 6: Final answer
    x = 11,689,582.20

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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.