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Finding the Fourth Proportional to 14,652,027.70, 21,978,041.55 and 7,485,666.10

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Solution

The fourth proportional to 14,652,027.70, 21,978,041.55 and 7,485,666.10 is: 11,228,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,027.70 : 21,978,041.55 = 7,485,666.10 : x
  2. Step 2: Convert to fraction form
    14,652,027.70/21,978,041.55 = 7,485,666.10/x
  3. Step 3: Cross multiply
    14,652,027.70x = 21,978,041.55 × 7,485,666.10
  4. Step 4: Simplify right side
    14,652,027.70x = 164,520,280,575,226.44
  5. Step 5: Solve for x
    x = 164,520,280,575,226.44/14,652,027.70
  6. Step 6: Final answer
    x = 11,228,499.15

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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.