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Finding the Fourth Proportional to 14,652,029.20, 21,978,043.80 and 7,485,667.60

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Solution

The fourth proportional to 14,652,029.20, 21,978,043.80 and 7,485,667.60 is: 11,228,501.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,029.20 : 21,978,043.80 = 7,485,667.60 : x
  2. Step 2: Convert to fraction form
    14,652,029.20/21,978,043.80 = 7,485,667.60/x
  3. Step 3: Cross multiply
    14,652,029.20x = 21,978,043.80 × 7,485,667.60
  4. Step 4: Simplify right side
    14,652,029.20x = 164,520,330,385,040.88
  5. Step 5: Solve for x
    x = 164,520,330,385,040.88/14,652,029.20
  6. Step 6: Final answer
    x = 11,228,501.40

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1.5x scale

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.