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Finding the Fourth Proportional to 19,659,800.16, 29,489,674.80 and 5,282,868.16

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Solution

The fourth proportional to 19,659,800.16, 29,489,674.80 and 5,282,868.16 is: 7,924,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659,800.16 : 29,489,674.80 = 5,282,868.16 : x
  2. Step 2: Convert to fraction form
    19,659,800.16/29,489,674.80 = 5,282,868.16/x
  3. Step 3: Cross multiply
    19,659,800.16x = 29,489,674.80 × 5,282,868.16
  4. Step 4: Simplify right side
    19,659,800.16x = 155,790,064,049,674.38
  5. Step 5: Solve for x
    x = 155,790,064,049,674.38/19,659,800.16
  6. Step 6: Final answer
    x = 7,924,295.40

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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.