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Finding the Fourth Proportional to 10,637,820, 15,956,730 and 2,659,644

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Solution

The fourth proportional to 10,637,820, 15,956,730 and 2,659,644 is: 3,989,466

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,637,820 : 15,956,730 = 2,659,644 : x
  2. Step 2: Convert to fraction form
    10,637,820/15,956,730 = 2,659,644/x
  3. Step 3: Cross multiply
    10,637,820x = 15,956,730 × 2,659,644
  4. Step 4: Simplify right side
    10,637,820x = 42,439,221,204,120
  5. Step 5: Solve for x
    x = 42,439,221,204,120/10,637,820
  6. Step 6: Final answer
    x = 3,989,466

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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.