Home / 30,879.04-42,612.51-17,450.01

Finding the Fourth Proportional to 30,879.04, 42,612.51 and 17,450.01

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Solution

The fourth proportional to 30,879.04, 42,612.51 and 17,450.01 is: 24,080.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,879.04 : 42,612.51 = 17,450.01 : x
  2. Step 2: Convert to fraction form
    30,879.04/42,612.51 = 17,450.01/x
  3. Step 3: Cross multiply
    30,879.04x = 42,612.51 × 17,450.01
  4. Step 4: Simplify right side
    30,879.04x = 743,588,725.63
  5. Step 5: Solve for x
    x = 743,588,725.63/30,879.04
  6. Step 6: Final answer
    x = 24,080.69

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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.