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Finding the Fourth Proportional to 47,809.78, 65,979.08 and 26,300.42

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Solution

The fourth proportional to 47,809.78, 65,979.08 and 26,300.42 is: 36,295.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,809.78 : 65,979.08 = 26,300.42 : x
  2. Step 2: Convert to fraction form
    47,809.78/65,979.08 = 26,300.42/x
  3. Step 3: Cross multiply
    47,809.78x = 65,979.08 × 26,300.42
  4. Step 4: Simplify right side
    47,809.78x = 1,735,277,515.21
  5. Step 5: Solve for x
    x = 1,735,277,515.21/47,809.78
  6. Step 6: Final answer
    x = 36,295.45

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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.