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Finding the Fourth Proportional to 7,371,978.66, 11,062,950.58 and 2,579,710.32

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Solution

The fourth proportional to 7,371,978.66, 11,062,950.58 and 2,579,710.32 is: 3,871,309.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371,978.66 : 11,062,950.58 = 2,579,710.32 : x
  2. Step 2: Convert to fraction form
    7,371,978.66/11,062,950.58 = 2,579,710.32/x
  3. Step 3: Cross multiply
    7,371,978.66x = 11,062,950.58 × 2,579,710.32
  4. Step 4: Simplify right side
    7,371,978.66x = 28,539,207,780,875.98
  5. Step 5: Solve for x
    x = 28,539,207,780,875.98/7,371,978.66
  6. Step 6: Final answer
    x = 3,871,309.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.