Home / 33,123.65-45,697.14-18,780.45

Finding the Fourth Proportional to 33,123.65, 45,697.14 and 18,780.45

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Solution

The fourth proportional to 33,123.65, 45,697.14 and 18,780.45 is: 25,909.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,123.65 : 45,697.14 = 18,780.45 : x
  2. Step 2: Convert to fraction form
    33,123.65/45,697.14 = 18,780.45/x
  3. Step 3: Cross multiply
    33,123.65x = 45,697.14 × 18,780.45
  4. Step 4: Simplify right side
    33,123.65x = 858,212,852.91
  5. Step 5: Solve for x
    x = 858,212,852.91/33,123.65
  6. Step 6: Final answer
    x = 25,909.37

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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.