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Finding the Fourth Proportional to 35,969.40, 53,951.22 and 12,274.92

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Solution

The fourth proportional to 35,969.40, 53,951.22 and 12,274.92 is: 18,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,969.40 : 53,951.22 = 12,274.92 : x
  2. Step 2: Convert to fraction form
    35,969.40/53,951.22 = 12,274.92/x
  3. Step 3: Cross multiply
    35,969.40x = 53,951.22 × 12,274.92
  4. Step 4: Simplify right side
    35,969.40x = 662,246,909.40
  5. Step 5: Solve for x
    x = 662,246,909.40/35,969.40
  6. Step 6: Final answer
    x = 18,411.40

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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.