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Finding the Fourth Proportional to 14,652,101.20, 21,978,151.80 and 7,485,739.60

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Solution

The fourth proportional to 14,652,101.20, 21,978,151.80 and 7,485,739.60 is: 11,228,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,101.20 : 21,978,151.80 = 7,485,739.60 : x
  2. Step 2: Convert to fraction form
    14,652,101.20/21,978,151.80 = 7,485,739.60/x
  3. Step 3: Cross multiply
    14,652,101.20x = 21,978,151.80 × 7,485,739.60
  4. Step 4: Simplify right side
    14,652,101.20x = 164,522,721,264,071.28
  5. Step 5: Solve for x
    x = 164,522,721,264,071.28/14,652,101.20
  6. Step 6: Final answer
    x = 11,228,609.40

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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.