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Finding the Fourth Proportional to 35,320.95, 48,739.95 and 19,406.16

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Solution

The fourth proportional to 35,320.95, 48,739.95 and 19,406.16 is: 26,778.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,320.95 : 48,739.95 = 19,406.16 : x
  2. Step 2: Convert to fraction form
    35,320.95/48,739.95 = 19,406.16/x
  3. Step 3: Cross multiply
    35,320.95x = 48,739.95 × 19,406.16
  4. Step 4: Simplify right side
    35,320.95x = 945,855,268.09
  5. Step 5: Solve for x
    x = 945,855,268.09/35,320.95
  6. Step 6: Final answer
    x = 26,778.87

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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.