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Finding the Fourth Proportional to 8,684,798.18, 11,986,458.91 and 4,818,564.90

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Solution

The fourth proportional to 8,684,798.18, 11,986,458.91 and 4,818,564.90 is: 6,650,417.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684,798.18 : 11,986,458.91 = 4,818,564.90 : x
  2. Step 2: Convert to fraction form
    8,684,798.18/11,986,458.91 = 4,818,564.90/x
  3. Step 3: Cross multiply
    8,684,798.18x = 11,986,458.91 × 4,818,564.90
  4. Step 4: Simplify right side
    8,684,798.18x = 57,757,530,179,018.27
  5. Step 5: Solve for x
    x = 57,757,530,179,018.27/8,684,798.18
  6. Step 6: Final answer
    x = 6,650,417.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.