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Finding the Fourth Proportional to 7,901.10, 10,903.08 and 4,916.84

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Solution

The fourth proportional to 7,901.10, 10,903.08 and 4,916.84 is: 6,784.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.10 : 10,903.08 = 4,916.84 : x
  2. Step 2: Convert to fraction form
    7,901.10/10,903.08 = 4,916.84/x
  3. Step 3: Cross multiply
    7,901.10x = 10,903.08 × 4,916.84
  4. Step 4: Simplify right side
    7,901.10x = 53,608,699.87
  5. Step 5: Solve for x
    x = 53,608,699.87/7,901.10
  6. Step 6: Final answer
    x = 6,784.97

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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.