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Finding the Fourth Proportional to 38,698.44, 53,403.80 and 22,566.40

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Solution

The fourth proportional to 38,698.44, 53,403.80 and 22,566.40 is: 31,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,698.44 : 53,403.80 = 22,566.40 : x
  2. Step 2: Convert to fraction form
    38,698.44/53,403.80 = 22,566.40/x
  3. Step 3: Cross multiply
    38,698.44x = 53,403.80 × 22,566.40
  4. Step 4: Simplify right side
    38,698.44x = 1,205,131,512.32
  5. Step 5: Solve for x
    x = 1,205,131,512.32/38,698.44
  6. Step 6: Final answer
    x = 31,141.60

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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.