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Finding the Fourth Proportional to 38,807.50, 53,554.42 and 22,040.50

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Solution

The fourth proportional to 38,807.50, 53,554.42 and 22,040.50 is: 30,415.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,807.50 : 53,554.42 = 22,040.50 : x
  2. Step 2: Convert to fraction form
    38,807.50/53,554.42 = 22,040.50/x
  3. Step 3: Cross multiply
    38,807.50x = 53,554.42 × 22,040.50
  4. Step 4: Simplify right side
    38,807.50x = 1,180,366,194.01
  5. Step 5: Solve for x
    x = 1,180,366,194.01/38,807.50
  6. Step 6: Final answer
    x = 30,415.93

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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.