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Finding the Fourth Proportional to 52,790.01, 72,850.25 and 28,916.78

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Solution

The fourth proportional to 52,790.01, 72,850.25 and 28,916.78 is: 39,905.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,790.01 : 72,850.25 = 28,916.78 : x
  2. Step 2: Convert to fraction form
    52,790.01/72,850.25 = 28,916.78/x
  3. Step 3: Cross multiply
    52,790.01x = 72,850.25 × 28,916.78
  4. Step 4: Simplify right side
    52,790.01x = 2,106,594,652.20
  5. Step 5: Solve for x
    x = 2,106,594,652.20/52,790.01
  6. Step 6: Final answer
    x = 39,905.18

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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.