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Finding the Fourth Proportional to 55,422.94, 83,146.71 and 15,976.98

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Solution

The fourth proportional to 55,422.94, 83,146.71 and 15,976.98 is: 23,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,422.94 : 83,146.71 = 15,976.98 : x
  2. Step 2: Convert to fraction form
    55,422.94/83,146.71 = 15,976.98/x
  3. Step 3: Cross multiply
    55,422.94x = 83,146.71 × 15,976.98
  4. Step 4: Simplify right side
    55,422.94x = 1,328,432,907.00
  5. Step 5: Solve for x
    x = 1,328,432,907.00/55,422.94
  6. Step 6: Final answer
    x = 23,969.01

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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.