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Finding the Fourth Proportional to 8,795,762.40, 13,191,800.40 and 4,311,256.80

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Solution

The fourth proportional to 8,795,762.40, 13,191,800.40 and 4,311,256.80 is: 6,465,981.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795,762.40 : 13,191,800.40 = 4,311,256.80 : x
  2. Step 2: Convert to fraction form
    8,795,762.40/13,191,800.40 = 4,311,256.80/x
  3. Step 3: Cross multiply
    8,795,762.40x = 13,191,800.40 × 4,311,256.80
  4. Step 4: Simplify right side
    8,795,762.40x = 56,873,239,178,742.72
  5. Step 5: Solve for x
    x = 56,873,239,178,742.72/8,795,762.40
  6. Step 6: Final answer
    x = 6,465,981.75

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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.