Home / 35,695.76-49,260.56-19,780.47

Finding the Fourth Proportional to 35,695.76, 49,260.56 and 19,780.47

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Solution

The fourth proportional to 35,695.76, 49,260.56 and 19,780.47 is: 27,297.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,695.76 : 49,260.56 = 19,780.47 : x
  2. Step 2: Convert to fraction form
    35,695.76/49,260.56 = 19,780.47/x
  3. Step 3: Cross multiply
    35,695.76x = 49,260.56 × 19,780.47
  4. Step 4: Simplify right side
    35,695.76x = 974,396,930.36
  5. Step 5: Solve for x
    x = 974,396,930.36/35,695.76
  6. Step 6: Final answer
    x = 27,297.28

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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.