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Finding the Third Proportional to 8,566,854.89 and 18,696,389.63

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Solution

The third proportional to 8,566,854.89 and 18,696,389.63 is: 40,803,187.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566,854.89 : 18,696,389.63 = 18,696,389.63 : x
  2. Step 2: Convert to fraction form
    8,566,854.89/18,696,389.63 = 18,696,389.63/x
  3. Step 3: Cross multiply
    8,566,854.89x = 18,696,389.63 × 18,696,389.63
  4. Step 4: Simplify right side
    8,566,854.89x = 349,554,985,009,807.62
  5. Step 5: Solve for x
    x = 349,554,985,009,807.62/8,566,854.89
  6. Step 6: Final answer
    x = 40,803,187.34

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.