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Finding the Fourth Proportional to 14,652.47, 20,216.90 and 8,683.10

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Solution

The fourth proportional to 14,652.47, 20,216.90 and 8,683.10 is: 11,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652.47 : 20,216.90 = 8,683.10 : x
  2. Step 2: Convert to fraction form
    14,652.47/20,216.90 = 8,683.10/x
  3. Step 3: Cross multiply
    14,652.47x = 20,216.90 × 8,683.10
  4. Step 4: Simplify right side
    14,652.47x = 175,545,364.39
  5. Step 5: Solve for x
    x = 175,545,364.39/14,652.47
  6. Step 6: Final answer
    x = 11,980.60

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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.