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Finding the Fourth Proportional to 13,594,980.30, 20,392,470.45 and 7,847,544.30

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Solution

The fourth proportional to 13,594,980.30, 20,392,470.45 and 7,847,544.30 is: 11,771,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,594,980.30 : 20,392,470.45 = 7,847,544.30 : x
  2. Step 2: Convert to fraction form
    13,594,980.30/20,392,470.45 = 7,847,544.30/x
  3. Step 3: Cross multiply
    13,594,980.30x = 20,392,470.45 × 7,847,544.30
  4. Step 4: Simplify right side
    13,594,980.30x = 160,030,815,242,815.94
  5. Step 5: Solve for x
    x = 160,030,815,242,815.94/13,594,980.30
  6. Step 6: Final answer
    x = 11,771,316.45

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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.