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Finding the Fourth Proportional to 13,563.70, 18,718.74 and 7,595.44

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Solution

The fourth proportional to 13,563.70, 18,718.74 and 7,595.44 is: 10,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.70 : 18,718.74 = 7,595.44 : x
  2. Step 2: Convert to fraction form
    13,563.70/18,718.74 = 7,595.44/x
  3. Step 3: Cross multiply
    13,563.70x = 18,718.74 × 7,595.44
  4. Step 4: Simplify right side
    13,563.70x = 142,177,066.55
  5. Step 5: Solve for x
    x = 142,177,066.55/13,563.70
  6. Step 6: Final answer
    x = 10,482.17

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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.