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Finding the Fourth Proportional to 13,673.58, 20,510.35 and 5,347.76

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Solution

The fourth proportional to 13,673.58, 20,510.35 and 5,347.76 is: 8,021.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.58 : 20,510.35 = 5,347.76 : x
  2. Step 2: Convert to fraction form
    13,673.58/20,510.35 = 5,347.76/x
  3. Step 3: Cross multiply
    13,673.58x = 20,510.35 × 5,347.76
  4. Step 4: Simplify right side
    13,673.58x = 109,684,429.32
  5. Step 5: Solve for x
    x = 109,684,429.32/13,673.58
  6. Step 6: Final answer
    x = 8,021.63

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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.