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Finding the Fourth Proportional to 38,176.80, 57,286.80 and 26,498.40

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Solution

The fourth proportional to 38,176.80, 57,286.80 and 26,498.40 is: 39,762.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,176.80 : 57,286.80 = 26,498.40 : x
  2. Step 2: Convert to fraction form
    38,176.80/57,286.80 = 26,498.40/x
  3. Step 3: Cross multiply
    38,176.80x = 57,286.80 × 26,498.40
  4. Step 4: Simplify right side
    38,176.80x = 1,518,008,541.12
  5. Step 5: Solve for x
    x = 1,518,008,541.12/38,176.80
  6. Step 6: Final answer
    x = 39,762.59

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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.