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Finding the Fourth Proportional to 8,549,406.65, 12,824,135.48 and 2,072,456.30

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Solution

The fourth proportional to 8,549,406.65, 12,824,135.48 and 2,072,456.30 is: 3,108,690.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,549,406.65 : 12,824,135.48 = 2,072,456.30 : x
  2. Step 2: Convert to fraction form
    8,549,406.65/12,824,135.48 = 2,072,456.30/x
  3. Step 3: Cross multiply
    8,549,406.65x = 12,824,135.48 × 2,072,456.30
  4. Step 4: Simplify right side
    8,549,406.65x = 26,577,460,308,639.98
  5. Step 5: Solve for x
    x = 26,577,460,308,639.98/8,549,406.65
  6. Step 6: Final answer
    x = 3,108,690.63

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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.