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Finding the Fourth Proportional to 38,955.11, 53,769.08 and 23,045.09

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Solution

The fourth proportional to 38,955.11, 53,769.08 and 23,045.09 is: 31,808.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,955.11 : 53,769.08 = 23,045.09 : x
  2. Step 2: Convert to fraction form
    38,955.11/53,769.08 = 23,045.09/x
  3. Step 3: Cross multiply
    38,955.11x = 53,769.08 × 23,045.09
  4. Step 4: Simplify right side
    38,955.11x = 1,239,113,287.82
  5. Step 5: Solve for x
    x = 1,239,113,287.82/38,955.11
  6. Step 6: Final answer
    x = 31,808.75

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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.