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Finding the Fourth Proportional to 15,990.99, 23,986.54 and 4,897.63

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Solution

The fourth proportional to 15,990.99, 23,986.54 and 4,897.63 is: 7,346.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.99 : 23,986.54 = 4,897.63 : x
  2. Step 2: Convert to fraction form
    15,990.99/23,986.54 = 4,897.63/x
  3. Step 3: Cross multiply
    15,990.99x = 23,986.54 × 4,897.63
  4. Step 4: Simplify right side
    15,990.99x = 117,477,197.90
  5. Step 5: Solve for x
    x = 117,477,197.90/15,990.99
  6. Step 6: Final answer
    x = 7,346.46

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Similar ratio
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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.