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Finding the Fourth Proportional to 21,594.48, 32,365.72 and 9,891.60

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Solution

The fourth proportional to 21,594.48, 32,365.72 and 9,891.60 is: 14,825.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,594.48 : 32,365.72 = 9,891.60 : x
  2. Step 2: Convert to fraction form
    21,594.48/32,365.72 = 9,891.60/x
  3. Step 3: Cross multiply
    21,594.48x = 32,365.72 × 9,891.60
  4. Step 4: Simplify right side
    21,594.48x = 320,148,755.95
  5. Step 5: Solve for x
    x = 320,148,755.95/21,594.48
  6. Step 6: Final answer
    x = 14,825.49

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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.