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Finding the Fourth Proportional to 18,598.40, 25,670.21 and 10,645.21

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Solution

The fourth proportional to 18,598.40, 25,670.21 and 10,645.21 is: 14,692.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,598.40 : 25,670.21 = 10,645.21 : x
  2. Step 2: Convert to fraction form
    18,598.40/25,670.21 = 10,645.21/x
  3. Step 3: Cross multiply
    18,598.40x = 25,670.21 × 10,645.21
  4. Step 4: Simplify right side
    18,598.40x = 273,264,776.19
  5. Step 5: Solve for x
    x = 273,264,776.19/18,598.40
  6. Step 6: Final answer
    x = 14,692.92

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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.