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Finding the Fourth Proportional to 9,266,868.90, 12,780,696.78 and 6,522,640.74

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Solution

The fourth proportional to 9,266,868.90, 12,780,696.78 and 6,522,640.74 is: 8,995,907.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,266,868.90 : 12,780,696.78 = 6,522,640.74 : x
  2. Step 2: Convert to fraction form
    9,266,868.90/12,780,696.78 = 6,522,640.74/x
  3. Step 3: Cross multiply
    9,266,868.90x = 12,780,696.78 × 6,522,640.74
  4. Step 4: Simplify right side
    9,266,868.90x = 83,363,893,502,814.81
  5. Step 5: Solve for x
    x = 83,363,893,502,814.81/9,266,868.90
  6. Step 6: Final answer
    x = 8,995,907.29

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Why These Related Problems?

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