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Finding the Fourth Proportional to 35,860.71, 49,486.91 and 20,751.28

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Solution

The fourth proportional to 35,860.71, 49,486.91 and 20,751.28 is: 28,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,860.71 : 49,486.91 = 20,751.28 : x
  2. Step 2: Convert to fraction form
    35,860.71/49,486.91 = 20,751.28/x
  3. Step 3: Cross multiply
    35,860.71x = 49,486.91 × 20,751.28
  4. Step 4: Simplify right side
    35,860.71x = 1,026,916,498.27
  5. Step 5: Solve for x
    x = 1,026,916,498.27/35,860.71
  6. Step 6: Final answer
    x = 28,636.26

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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.