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Finding the Fourth Proportional to 52,843.25, 72,923.63 and 28,970.06

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Solution

The fourth proportional to 52,843.25, 72,923.63 and 28,970.06 is: 39,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,843.25 : 72,923.63 = 28,970.06 : x
  2. Step 2: Convert to fraction form
    52,843.25/72,923.63 = 28,970.06/x
  3. Step 3: Cross multiply
    52,843.25x = 72,923.63 × 28,970.06
  4. Step 4: Simplify right side
    52,843.25x = 2,112,601,427.05
  5. Step 5: Solve for x
    x = 2,112,601,427.05/52,843.25
  6. Step 6: Final answer
    x = 39,978.64

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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.