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Finding the Fourth Proportional to 8,869,710.80, 13,285,903.80 and 7,376,718.80

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Solution

The fourth proportional to 8,869,710.80, 13,285,903.80 and 7,376,718.80 is: 11,049,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869,710.80 : 13,285,903.80 = 7,376,718.80 : x
  2. Step 2: Convert to fraction form
    8,869,710.80/13,285,903.80 = 7,376,718.80/x
  3. Step 3: Cross multiply
    8,869,710.80x = 13,285,903.80 × 7,376,718.80
  4. Step 4: Simplify right side
    8,869,710.80x = 98,006,376,336,451.44
  5. Step 5: Solve for x
    x = 98,006,376,336,451.44/8,869,710.80
  6. Step 6: Final answer
    x = 11,049,557.14

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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.