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Finding the Fourth Proportional to 26,795.16, 36,978.30 and 20,068.92

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Solution

The fourth proportional to 26,795.16, 36,978.30 and 20,068.92 is: 27,695.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,795.16 : 36,978.30 = 20,068.92 : x
  2. Step 2: Convert to fraction form
    26,795.16/36,978.30 = 20,068.92/x
  3. Step 3: Cross multiply
    26,795.16x = 36,978.30 × 20,068.92
  4. Step 4: Simplify right side
    26,795.16x = 742,114,544.44
  5. Step 5: Solve for x
    x = 742,114,544.44/26,795.16
  6. Step 6: Final answer
    x = 27,695.84

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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.