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Finding the Fourth Proportional to 14,603.16, 20,153.94 and 8,941.72

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Solution

The fourth proportional to 14,603.16, 20,153.94 and 8,941.72 is: 12,340.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,603.16 : 20,153.94 = 8,941.72 : x
  2. Step 2: Convert to fraction form
    14,603.16/20,153.94 = 8,941.72/x
  3. Step 3: Cross multiply
    14,603.16x = 20,153.94 × 8,941.72
  4. Step 4: Simplify right side
    14,603.16x = 180,210,888.38
  5. Step 5: Solve for x
    x = 180,210,888.38/14,603.16
  6. Step 6: Final answer
    x = 12,340.54

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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.