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Finding the Fourth Proportional to 34,221.60, 51,348.84 and 16,681.86

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Solution

The fourth proportional to 34,221.60, 51,348.84 and 16,681.86 is: 25,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,221.60 : 51,348.84 = 16,681.86 : x
  2. Step 2: Convert to fraction form
    34,221.60/51,348.84 = 16,681.86/x
  3. Step 3: Cross multiply
    34,221.60x = 51,348.84 × 16,681.86
  4. Step 4: Simplify right side
    34,221.60x = 856,594,160.04
  5. Step 5: Solve for x
    x = 856,594,160.04/34,221.60
  6. Step 6: Final answer
    x = 25,030.80

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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.