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Finding the Fourth Proportional to 38,995.71, 58,494.47 and 12,702.49

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Solution

The fourth proportional to 38,995.71, 58,494.47 and 12,702.49 is: 19,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,995.71 : 58,494.47 = 12,702.49 : x
  2. Step 2: Convert to fraction form
    38,995.71/58,494.47 = 12,702.49/x
  3. Step 3: Cross multiply
    38,995.71x = 58,494.47 × 12,702.49
  4. Step 4: Simplify right side
    38,995.71x = 743,025,420.23
  5. Step 5: Solve for x
    x = 743,025,420.23/38,995.71
  6. Step 6: Final answer
    x = 19,054.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.