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Finding the Fourth Proportional to 14,865.01, 20,513.88 and 8,492.45

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Solution

The fourth proportional to 14,865.01, 20,513.88 and 8,492.45 is: 11,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,865.01 : 20,513.88 = 8,492.45 : x
  2. Step 2: Convert to fraction form
    14,865.01/20,513.88 = 8,492.45/x
  3. Step 3: Cross multiply
    14,865.01x = 20,513.88 × 8,492.45
  4. Step 4: Simplify right side
    14,865.01x = 174,212,997.64
  5. Step 5: Solve for x
    x = 174,212,997.64/14,865.01
  6. Step 6: Final answer
    x = 11,719.67

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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.