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Finding the Fourth Proportional to 14,679,957.90, 22,019,936.85 and 11,656,649.10

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Solution

The fourth proportional to 14,679,957.90, 22,019,936.85 and 11,656,649.10 is: 17,484,973.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679,957.90 : 22,019,936.85 = 11,656,649.10 : x
  2. Step 2: Convert to fraction form
    14,679,957.90/22,019,936.85 = 11,656,649.10/x
  3. Step 3: Cross multiply
    14,679,957.90x = 22,019,936.85 × 11,656,649.10
  4. Step 4: Simplify right side
    14,679,957.90x = 256,678,677,064,609.34
  5. Step 5: Solve for x
    x = 256,678,677,064,609.34/14,679,957.90
  6. Step 6: Final answer
    x = 17,484,973.65

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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.