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Finding the Fourth Proportional to 35,466.81, 48,948.63 and 20,364.20

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Solution

The fourth proportional to 35,466.81, 48,948.63 and 20,364.20 is: 28,105.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,466.81 : 48,948.63 = 20,364.20 : x
  2. Step 2: Convert to fraction form
    35,466.81/48,948.63 = 20,364.20/x
  3. Step 3: Cross multiply
    35,466.81x = 48,948.63 × 20,364.20
  4. Step 4: Simplify right side
    35,466.81x = 996,799,589.23
  5. Step 5: Solve for x
    x = 996,799,589.23/35,466.81
  6. Step 6: Final answer
    x = 28,105.14

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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.