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Finding the Fourth Proportional to 6,862,624.80, 10,286,938.80 and 4,021,274.40

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Solution

The fourth proportional to 6,862,624.80, 10,286,938.80 and 4,021,274.40 is: 6,027,810.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862,624.80 : 10,286,938.80 = 4,021,274.40 : x
  2. Step 2: Convert to fraction form
    6,862,624.80/10,286,938.80 = 4,021,274.40/x
  3. Step 3: Cross multiply
    6,862,624.80x = 10,286,938.80 × 4,021,274.40
  4. Step 4: Simplify right side
    6,862,624.80x = 41,366,603,650,806.72
  5. Step 5: Solve for x
    x = 41,366,603,650,806.72/6,862,624.80
  6. Step 6: Final answer
    x = 6,027,810.77

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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.