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Finding the Third Proportional to 7,786,989 and 16,772,076

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Solution

The third proportional to 7,786,989 and 16,772,076 is: 36,124,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786,989 : 16,772,076 = 16,772,076 : x
  2. Step 2: Convert to fraction form
    7,786,989/16,772,076 = 16,772,076/x
  3. Step 3: Cross multiply
    7,786,989x = 16,772,076 × 16,772,076
  4. Step 4: Simplify right side
    7,786,989x = 281,302,533,349,776
  5. Step 5: Solve for x
    x = 281,302,533,349,776/7,786,989
  6. Step 6: Final answer
    x = 36,124,686.11

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.