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Finding the Fourth Proportional to 52,197.30, 72,030.84 and 28,912.92

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Solution

The fourth proportional to 52,197.30, 72,030.84 and 28,912.92 is: 39,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,197.30 : 72,030.84 = 28,912.92 : x
  2. Step 2: Convert to fraction form
    52,197.30/72,030.84 = 28,912.92/x
  3. Step 3: Cross multiply
    52,197.30x = 72,030.84 × 28,912.92
  4. Step 4: Simplify right side
    52,197.30x = 2,082,621,914.45
  5. Step 5: Solve for x
    x = 2,082,621,914.45/52,197.30
  6. Step 6: Final answer
    x = 39,899.04

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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.