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Finding the Fourth Proportional to 9,968,008.75, 13,755,857.54 and 5,384,330.13

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Solution

The fourth proportional to 9,968,008.75, 13,755,857.54 and 5,384,330.13 is: 7,430,378.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,968,008.75 : 13,755,857.54 = 5,384,330.13 : x
  2. Step 2: Convert to fraction form
    9,968,008.75/13,755,857.54 = 5,384,330.13/x
  3. Step 3: Cross multiply
    9,968,008.75x = 13,755,857.54 × 5,384,330.13
  4. Step 4: Simplify right side
    9,968,008.75x = 74,066,078,216,609.67
  5. Step 5: Solve for x
    x = 74,066,078,216,609.67/9,968,008.75
  6. Step 6: Final answer
    x = 7,430,378.53

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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.