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Finding the Fourth Proportional to 34,990.79, 48,286.83 and 19,075.20

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Solution

The fourth proportional to 34,990.79, 48,286.83 and 19,075.20 is: 26,323.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,990.79 : 48,286.83 = 19,075.20 : x
  2. Step 2: Convert to fraction form
    34,990.79/48,286.83 = 19,075.20/x
  3. Step 3: Cross multiply
    34,990.79x = 48,286.83 × 19,075.20
  4. Step 4: Simplify right side
    34,990.79x = 921,080,830.07
  5. Step 5: Solve for x
    x = 921,080,830.07/34,990.79
  6. Step 6: Final answer
    x = 26,323.53

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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.