Home / 19,858.64-27,208.82-19,612.68

Finding the Fourth Proportional to 19,858.64, 27,208.82 and 19,612.68

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Solution

The fourth proportional to 19,858.64, 27,208.82 and 19,612.68 is: 26,871.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.64 : 27,208.82 = 19,612.68 : x
  2. Step 2: Convert to fraction form
    19,858.64/27,208.82 = 19,612.68/x
  3. Step 3: Cross multiply
    19,858.64x = 27,208.82 × 19,612.68
  4. Step 4: Simplify right side
    19,858.64x = 533,637,879.84
  5. Step 5: Solve for x
    x = 533,637,879.84/19,858.64
  6. Step 6: Final answer
    x = 26,871.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.