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Finding the Fourth Proportional to 28,592.56, 42,898.92 and 8,876.08

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Solution

The fourth proportional to 28,592.56, 42,898.92 and 8,876.08 is: 13,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,592.56 : 42,898.92 = 8,876.08 : x
  2. Step 2: Convert to fraction form
    28,592.56/42,898.92 = 8,876.08/x
  3. Step 3: Cross multiply
    28,592.56x = 42,898.92 × 8,876.08
  4. Step 4: Simplify right side
    28,592.56x = 380,774,245.83
  5. Step 5: Solve for x
    x = 380,774,245.83/28,592.56
  6. Step 6: Final answer
    x = 13,317.25

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1.5x scale

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.