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Finding the Fourth Proportional to 15,358,992.84, 21,193,604.28 and 8,483,064.84

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Solution

The fourth proportional to 15,358,992.84, 21,193,604.28 and 8,483,064.84 is: 11,705,632.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,358,992.84 : 21,193,604.28 = 8,483,064.84 : x
  2. Step 2: Convert to fraction form
    15,358,992.84/21,193,604.28 = 8,483,064.84/x
  3. Step 3: Cross multiply
    15,358,992.84x = 21,193,604.28 × 8,483,064.84
  4. Step 4: Simplify right side
    15,358,992.84x = 179,786,719,300,541.53
  5. Step 5: Solve for x
    x = 179,786,719,300,541.53/15,358,992.84
  6. Step 6: Final answer
    x = 11,705,632.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.