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Finding the Fourth Proportional to 13,675.64, 20,492.95 and 10,550.96

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Solution

The fourth proportional to 13,675.64, 20,492.95 and 10,550.96 is: 15,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.64 : 20,492.95 = 10,550.96 : x
  2. Step 2: Convert to fraction form
    13,675.64/20,492.95 = 10,550.96/x
  3. Step 3: Cross multiply
    13,675.64x = 20,492.95 × 10,550.96
  4. Step 4: Simplify right side
    13,675.64x = 216,220,263.52
  5. Step 5: Solve for x
    x = 216,220,263.52/13,675.64
  6. Step 6: Final answer
    x = 15,810.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.