Home / 52,699.36-72,725.69-28,500.78

Finding the Fourth Proportional to 52,699.36, 72,725.69 and 28,500.78

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Solution

The fourth proportional to 52,699.36, 72,725.69 and 28,500.78 is: 39,331.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,699.36 : 72,725.69 = 28,500.78 : x
  2. Step 2: Convert to fraction form
    52,699.36/72,725.69 = 28,500.78/x
  3. Step 3: Cross multiply
    52,699.36x = 72,725.69 × 28,500.78
  4. Step 4: Simplify right side
    52,699.36x = 2,072,738,891.04
  5. Step 5: Solve for x
    x = 2,072,738,891.04/52,699.36
  6. Step 6: Final answer
    x = 39,331.39

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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.