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Finding the Fourth Proportional to 7,168,004.96, 9,891,842.48 and 3,948,740.96

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Solution

The fourth proportional to 7,168,004.96, 9,891,842.48 and 3,948,740.96 is: 5,449,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168,004.96 : 9,891,842.48 = 3,948,740.96 : x
  2. Step 2: Convert to fraction form
    7,168,004.96/9,891,842.48 = 3,948,740.96/x
  3. Step 3: Cross multiply
    7,168,004.96x = 9,891,842.48 × 3,948,740.96
  4. Step 4: Simplify right side
    7,168,004.96x = 39,060,323,570,643.98
  5. Step 5: Solve for x
    x = 39,060,323,570,643.98/7,168,004.96
  6. Step 6: Final answer
    x = 5,449,260.12

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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.