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Finding the Fourth Proportional to 44,679.40, 67,043.40 and 18,386.80

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Solution

The fourth proportional to 44,679.40, 67,043.40 and 18,386.80 is: 27,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,679.40 : 67,043.40 = 18,386.80 : x
  2. Step 2: Convert to fraction form
    44,679.40/67,043.40 = 18,386.80/x
  3. Step 3: Cross multiply
    44,679.40x = 67,043.40 × 18,386.80
  4. Step 4: Simplify right side
    44,679.40x = 1,232,713,587.12
  5. Step 5: Solve for x
    x = 1,232,713,587.12/44,679.40
  6. Step 6: Final answer
    x = 27,590.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.