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Finding the Fourth Proportional to 38,703.64, 53,419.80 and 26,620.24

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Solution

The fourth proportional to 38,703.64, 53,419.80 and 26,620.24 is: 36,741.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,703.64 : 53,419.80 = 26,620.24 : x
  2. Step 2: Convert to fraction form
    38,703.64/53,419.80 = 26,620.24/x
  3. Step 3: Cross multiply
    38,703.64x = 53,419.80 × 26,620.24
  4. Step 4: Simplify right side
    38,703.64x = 1,422,047,896.75
  5. Step 5: Solve for x
    x = 1,422,047,896.75/38,703.64
  6. Step 6: Final answer
    x = 36,741.97

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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.