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Finding the Fourth Proportional to 14,627.16, 20,182.50 and 8,655.84

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Solution

The fourth proportional to 14,627.16, 20,182.50 and 8,655.84 is: 11,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,627.16 : 20,182.50 = 8,655.84 : x
  2. Step 2: Convert to fraction form
    14,627.16/20,182.50 = 8,655.84/x
  3. Step 3: Cross multiply
    14,627.16x = 20,182.50 × 8,655.84
  4. Step 4: Simplify right side
    14,627.16x = 174,696,490.80
  5. Step 5: Solve for x
    x = 174,696,490.80/14,627.16
  6. Step 6: Final answer
    x = 11,943.30

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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.