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Finding the Third Proportional to 1,518,803.16 and 2,136,391.45

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Solution

The third proportional to 1,518,803.16 and 2,136,391.45 is: 3,005,108.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518,803.16 : 2,136,391.45 = 2,136,391.45 : x
  2. Step 2: Convert to fraction form
    1,518,803.16/2,136,391.45 = 2,136,391.45/x
  3. Step 3: Cross multiply
    1,518,803.16x = 2,136,391.45 × 2,136,391.45
  4. Step 4: Simplify right side
    1,518,803.16x = 4,564,168,440,985.55
  5. Step 5: Solve for x
    x = 4,564,168,440,985.55/1,518,803.16
  6. Step 6: Final answer
    x = 3,005,108.61

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.