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Finding the Fourth Proportional to 53,217.80, 79,826.70 and 16,281.80

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Solution

The fourth proportional to 53,217.80, 79,826.70 and 16,281.80 is: 24,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,217.80 : 79,826.70 = 16,281.80 : x
  2. Step 2: Convert to fraction form
    53,217.80/79,826.70 = 16,281.80/x
  3. Step 3: Cross multiply
    53,217.80x = 79,826.70 × 16,281.80
  4. Step 4: Simplify right side
    53,217.80x = 1,299,722,364.06
  5. Step 5: Solve for x
    x = 1,299,722,364.06/53,217.80
  6. Step 6: Final answer
    x = 24,422.70

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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.