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Finding the Fourth Proportional to 6,461,486.91, 8,916,887.03 and 3,707,955.09

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Solution

The fourth proportional to 6,461,486.91, 8,916,887.03 and 3,707,955.09 is: 5,116,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461,486.91 : 8,916,887.03 = 3,707,955.09 : x
  2. Step 2: Convert to fraction form
    6,461,486.91/8,916,887.03 = 3,707,955.09/x
  3. Step 3: Cross multiply
    6,461,486.91x = 8,916,887.03 × 3,707,955.09
  4. Step 4: Simplify right side
    6,461,486.91x = 33,063,416,631,303.71
  5. Step 5: Solve for x
    x = 33,063,416,631,303.71/6,461,486.91
  6. Step 6: Final answer
    x = 5,116,998.16

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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.