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Finding the Fourth Proportional to 18,533,659.61, 27,800,769.58 and 7,016,034.31

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Solution

The fourth proportional to 18,533,659.61, 27,800,769.58 and 7,016,034.31 is: 10,524,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,533,659.61 : 27,800,769.58 = 7,016,034.31 : x
  2. Step 2: Convert to fraction form
    18,533,659.61/27,800,769.58 = 7,016,034.31/x
  3. Step 3: Cross multiply
    18,533,659.61x = 27,800,769.58 × 7,016,034.31
  4. Step 4: Simplify right side
    18,533,659.61x = 195,051,153,130,642.28
  5. Step 5: Solve for x
    x = 195,051,153,130,642.28/18,533,659.61
  6. Step 6: Final answer
    x = 10,524,157.52

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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.