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Finding the Fourth Proportional to 15,696,519.95, 21,924,739.45 and 15,696,519.95

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Solution

The fourth proportional to 15,696,519.95, 21,924,739.45 and 15,696,519.95 is: 21,924,739.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696,519.95 : 21,924,739.45 = 15,696,519.95 : x
  2. Step 2: Convert to fraction form
    15,696,519.95/21,924,739.45 = 15,696,519.95/x
  3. Step 3: Cross multiply
    15,696,519.95x = 21,924,739.45 × 15,696,519.95
  4. Step 4: Simplify right side
    15,696,519.95x = 344,142,110,175,477
  5. Step 5: Solve for x
    x = 344,142,110,175,477/15,696,519.95
  6. Step 6: Final answer
    x = 21,924,739.45

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.