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Finding the Fourth Proportional to 35,349.48, 53,021.48 and 20,548.95

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Solution

The fourth proportional to 35,349.48, 53,021.48 and 20,548.95 is: 30,821.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,349.48 : 53,021.48 = 20,548.95 : x
  2. Step 2: Convert to fraction form
    35,349.48/53,021.48 = 20,548.95/x
  3. Step 3: Cross multiply
    35,349.48x = 53,021.48 × 20,548.95
  4. Step 4: Simplify right side
    35,349.48x = 1,089,535,638.70
  5. Step 5: Solve for x
    x = 1,089,535,638.70/35,349.48
  6. Step 6: Final answer
    x = 30,821.83

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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.