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Finding the Fourth Proportional to 35,428.71, 48,891.95 and 19,513.22

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Solution

The fourth proportional to 35,428.71, 48,891.95 and 19,513.22 is: 26,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,428.71 : 48,891.95 = 19,513.22 : x
  2. Step 2: Convert to fraction form
    35,428.71/48,891.95 = 19,513.22/x
  3. Step 3: Cross multiply
    35,428.71x = 48,891.95 × 19,513.22
  4. Step 4: Simplify right side
    35,428.71x = 954,039,034.55
  5. Step 5: Solve for x
    x = 954,039,034.55/35,428.71
  6. Step 6: Final answer
    x = 26,928.42

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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.