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Finding the Fourth Proportional to 8,916,499.76, 12,308,536.37 and 6,019,814.21

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Solution

The fourth proportional to 8,916,499.76, 12,308,536.37 and 6,019,814.21 is: 8,309,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916,499.76 : 12,308,536.37 = 6,019,814.21 : x
  2. Step 2: Convert to fraction form
    8,916,499.76/12,308,536.37 = 6,019,814.21/x
  3. Step 3: Cross multiply
    8,916,499.76x = 12,308,536.37 × 6,019,814.21
  4. Step 4: Simplify right side
    8,916,499.76x = 74,095,102,097,934.67
  5. Step 5: Solve for x
    x = 74,095,102,097,934.67/8,916,499.76
  6. Step 6: Final answer
    x = 8,309,886.63

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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.