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Finding the Fourth Proportional to 7,902.11, 10,907.08 and 4,916.16

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Solution

The fourth proportional to 7,902.11, 10,907.08 and 4,916.16 is: 6,785.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.11 : 10,907.08 = 4,916.16 : x
  2. Step 2: Convert to fraction form
    7,902.11/10,907.08 = 4,916.16/x
  3. Step 3: Cross multiply
    7,902.11x = 10,907.08 × 4,916.16
  4. Step 4: Simplify right side
    7,902.11x = 53,620,938.12
  5. Step 5: Solve for x
    x = 53,620,938.12/7,902.11
  6. Step 6: Final answer
    x = 6,785.65

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1.5x scale

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.