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Finding the Fourth Proportional to 46,893, 64,713.14 and 28,987.54

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Solution

The fourth proportional to 46,893, 64,713.14 and 28,987.54 is: 40,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,893 : 64,713.14 = 28,987.54 : x
  2. Step 2: Convert to fraction form
    46,893/64,713.14 = 28,987.54/x
  3. Step 3: Cross multiply
    46,893x = 64,713.14 × 28,987.54
  4. Step 4: Simplify right side
    46,893x = 1,875,874,734.28
  5. Step 5: Solve for x
    x = 1,875,874,734.28/46,893
  6. Step 6: Final answer
    x = 40,003.30

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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.