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Finding the Fourth Proportional to 26,795.43, 36,978.84 and 14,858.78

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Solution

The fourth proportional to 26,795.43, 36,978.84 and 14,858.78 is: 20,505.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,795.43 : 36,978.84 = 14,858.78 : x
  2. Step 2: Convert to fraction form
    26,795.43/36,978.84 = 14,858.78/x
  3. Step 3: Cross multiply
    26,795.43x = 36,978.84 × 14,858.78
  4. Step 4: Simplify right side
    26,795.43x = 549,460,263.32
  5. Step 5: Solve for x
    x = 549,460,263.32/26,795.43
  6. Step 6: Final answer
    x = 20,505.75

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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.