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Finding the Fourth Proportional to 6,899,574.70, 10,368,024.45 and 6,078,429.10

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Solution

The fourth proportional to 6,899,574.70, 10,368,024.45 and 6,078,429.10 is: 9,134,084.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899,574.70 : 10,368,024.45 = 6,078,429.10 : x
  2. Step 2: Convert to fraction form
    6,899,574.70/10,368,024.45 = 6,078,429.10/x
  3. Step 3: Cross multiply
    6,899,574.70x = 10,368,024.45 × 6,078,429.10
  4. Step 4: Simplify right side
    6,899,574.70x = 63,021,301,526,391.48
  5. Step 5: Solve for x
    x = 63,021,301,526,391.48/6,899,574.70
  6. Step 6: Final answer
    x = 9,134,084.96

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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.