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Finding the Fourth Proportional to 18,604,610.67, 27,932,574.64 and 12,833,659.63

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Solution

The fourth proportional to 18,604,610.67, 27,932,574.64 and 12,833,659.63 is: 19,268,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604,610.67 : 27,932,574.64 = 12,833,659.63 : x
  2. Step 2: Convert to fraction form
    18,604,610.67/27,932,574.64 = 12,833,659.63/x
  3. Step 3: Cross multiply
    18,604,610.67x = 27,932,574.64 × 12,833,659.63
  4. Step 4: Simplify right side
    18,604,610.67x = 358,477,155,455,161.50
  5. Step 5: Solve for x
    x = 358,477,155,455,161.50/18,604,610.67
  6. Step 6: Final answer
    x = 19,268,189.05

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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.