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Finding the Fourth Proportional to 46,687.81, 64,410.81 and 28,751.68

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Solution

The fourth proportional to 46,687.81, 64,410.81 and 28,751.68 is: 39,666.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,687.81 : 64,410.81 = 28,751.68 : x
  2. Step 2: Convert to fraction form
    46,687.81/64,410.81 = 28,751.68/x
  3. Step 3: Cross multiply
    46,687.81x = 64,410.81 × 28,751.68
  4. Step 4: Simplify right side
    46,687.81x = 1,851,918,997.66
  5. Step 5: Solve for x
    x = 1,851,918,997.66/46,687.81
  6. Step 6: Final answer
    x = 39,666.01

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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.