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Finding the Fourth Proportional to 25,730.40, 38,552.40 and 22,015.20

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Solution

The fourth proportional to 25,730.40, 38,552.40 and 22,015.20 is: 32,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,730.40 : 38,552.40 = 22,015.20 : x
  2. Step 2: Convert to fraction form
    25,730.40/38,552.40 = 22,015.20/x
  3. Step 3: Cross multiply
    25,730.40x = 38,552.40 × 22,015.20
  4. Step 4: Simplify right side
    25,730.40x = 848,738,796.48
  5. Step 5: Solve for x
    x = 848,738,796.48/25,730.40
  6. Step 6: Final answer
    x = 32,985.84

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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.