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Finding the Fourth Proportional to 7,939,402.80, 10,958,842.80 and 6,310,700.16

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Solution

The fourth proportional to 7,939,402.80, 10,958,842.80 and 6,310,700.16 is: 8,710,727.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939,402.80 : 10,958,842.80 = 6,310,700.16 : x
  2. Step 2: Convert to fraction form
    7,939,402.80/10,958,842.80 = 6,310,700.16/x
  3. Step 3: Cross multiply
    7,939,402.80x = 10,958,842.80 × 6,310,700.16
  4. Step 4: Simplify right side
    7,939,402.80x = 69,157,971,011,374.85
  5. Step 5: Solve for x
    x = 69,157,971,011,374.85/7,939,402.80
  6. Step 6: Final answer
    x = 8,710,727.09

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