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Finding the Fourth Proportional to 14,603.32, 20,153.32 and 8,936.30

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Solution

The fourth proportional to 14,603.32, 20,153.32 and 8,936.30 is: 12,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,603.32 : 20,153.32 = 8,936.30 : x
  2. Step 2: Convert to fraction form
    14,603.32/20,153.32 = 8,936.30/x
  3. Step 3: Cross multiply
    14,603.32x = 20,153.32 × 8,936.30
  4. Step 4: Simplify right side
    14,603.32x = 180,096,113.52
  5. Step 5: Solve for x
    x = 180,096,113.52/14,603.32
  6. Step 6: Final answer
    x = 12,332.55

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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.