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Finding the Fourth Proportional to 9,774,405.80, 14,670,939.90 and 4,987,500.20

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Solution

The fourth proportional to 9,774,405.80, 14,670,939.90 and 4,987,500.20 is: 7,486,011.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,774,405.80 : 14,670,939.90 = 4,987,500.20 : x
  2. Step 2: Convert to fraction form
    9,774,405.80/14,670,939.90 = 4,987,500.20/x
  3. Step 3: Cross multiply
    9,774,405.80x = 14,670,939.90 × 4,987,500.20
  4. Step 4: Simplify right side
    9,774,405.80x = 73,171,315,685,437.98
  5. Step 5: Solve for x
    x = 73,171,315,685,437.98/9,774,405.80
  6. Step 6: Final answer
    x = 7,486,011.65

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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.