Home / 51,515.19-71,095.30-28,853.77

Finding the Fourth Proportional to 51,515.19, 71,095.30 and 28,853.77

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Solution

The fourth proportional to 51,515.19, 71,095.30 and 28,853.77 is: 39,820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,515.19 : 71,095.30 = 28,853.77 : x
  2. Step 2: Convert to fraction form
    51,515.19/71,095.30 = 28,853.77/x
  3. Step 3: Cross multiply
    51,515.19x = 71,095.30 × 28,853.77
  4. Step 4: Simplify right side
    51,515.19x = 2,051,367,434.28
  5. Step 5: Solve for x
    x = 2,051,367,434.28/51,515.19
  6. Step 6: Final answer
    x = 39,820.63

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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.