Home / 25,890.49-35,740.90-19,519.66

Finding the Fourth Proportional to 25,890.49, 35,740.90 and 19,519.66

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Solution

The fourth proportional to 25,890.49, 35,740.90 and 19,519.66 is: 26,946.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,890.49 : 35,740.90 = 19,519.66 : x
  2. Step 2: Convert to fraction form
    25,890.49/35,740.90 = 19,519.66/x
  3. Step 3: Cross multiply
    25,890.49x = 35,740.90 × 19,519.66
  4. Step 4: Simplify right side
    25,890.49x = 697,650,037.39
  5. Step 5: Solve for x
    x = 697,650,037.39/25,890.49
  6. Step 6: Final answer
    x = 26,946.19

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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.