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Finding the Fourth Proportional to 34,955.78, 48,238.89 and 19,040.18

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Solution

The fourth proportional to 34,955.78, 48,238.89 and 19,040.18 is: 26,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,955.78 : 48,238.89 = 19,040.18 : x
  2. Step 2: Convert to fraction form
    34,955.78/48,238.89 = 19,040.18/x
  3. Step 3: Cross multiply
    34,955.78x = 48,238.89 × 19,040.18
  4. Step 4: Simplify right side
    34,955.78x = 918,476,907.41
  5. Step 5: Solve for x
    x = 918,476,907.41/34,955.78
  6. Step 6: Final answer
    x = 26,275.40

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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.