Home / 51,315.63-70,806.69-28,653.45

Finding the Fourth Proportional to 51,315.63, 70,806.69 and 28,653.45

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Solution

The fourth proportional to 51,315.63, 70,806.69 and 28,653.45 is: 39,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,315.63 : 70,806.69 = 28,653.45 : x
  2. Step 2: Convert to fraction form
    51,315.63/70,806.69 = 28,653.45/x
  3. Step 3: Cross multiply
    51,315.63x = 70,806.69 × 28,653.45
  4. Step 4: Simplify right side
    51,315.63x = 2,028,855,951.58
  5. Step 5: Solve for x
    x = 2,028,855,951.58/51,315.63
  6. Step 6: Final answer
    x = 39,536.80

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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.