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Finding the Fourth Proportional to 33,978.04, 46,888.10 and 18,871.68

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Solution

The fourth proportional to 33,978.04, 46,888.10 and 18,871.68 is: 26,042.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,978.04 : 46,888.10 = 18,871.68 : x
  2. Step 2: Convert to fraction form
    33,978.04/46,888.10 = 18,871.68/x
  3. Step 3: Cross multiply
    33,978.04x = 46,888.10 × 18,871.68
  4. Step 4: Simplify right side
    33,978.04x = 884,857,219.01
  5. Step 5: Solve for x
    x = 884,857,219.01/33,978.04
  6. Step 6: Final answer
    x = 26,042.03

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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.