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Finding the Fourth Proportional to 8,366,751.60, 12,558,421.80 and 4,111,724.40

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Solution

The fourth proportional to 8,366,751.60, 12,558,421.80 and 4,111,724.40 is: 6,171,662.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,366,751.60 : 12,558,421.80 = 4,111,724.40 : x
  2. Step 2: Convert to fraction form
    8,366,751.60/12,558,421.80 = 4,111,724.40/x
  3. Step 3: Cross multiply
    8,366,751.60x = 12,558,421.80 × 4,111,724.40
  4. Step 4: Simplify right side
    8,366,751.60x = 51,636,769,340,551.92
  5. Step 5: Solve for x
    x = 51,636,769,340,551.92/8,366,751.60
  6. Step 6: Final answer
    x = 6,171,662.77

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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.