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Finding the Fourth Proportional to 7,903,710, 11,855,594.16 and 1,920,078

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Solution

The fourth proportional to 7,903,710, 11,855,594.16 and 1,920,078 is: 2,880,124.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903,710 : 11,855,594.16 = 1,920,078 : x
  2. Step 2: Convert to fraction form
    7,903,710/11,855,594.16 = 1,920,078/x
  3. Step 3: Cross multiply
    7,903,710x = 11,855,594.16 × 1,920,078
  4. Step 4: Simplify right side
    7,903,710x = 22,763,665,523,544.48
  5. Step 5: Solve for x
    x = 22,763,665,523,544.48/7,903,710
  6. Step 6: Final answer
    x = 2,880,124.08

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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.