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Finding the Fourth Proportional to 25,662.81, 35,412.63 and 14,331.63

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Solution

The fourth proportional to 25,662.81, 35,412.63 and 14,331.63 is: 19,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,662.81 : 35,412.63 = 14,331.63 : x
  2. Step 2: Convert to fraction form
    25,662.81/35,412.63 = 14,331.63/x
  3. Step 3: Cross multiply
    25,662.81x = 35,412.63 × 14,331.63
  4. Step 4: Simplify right side
    25,662.81x = 507,520,710.49
  5. Step 5: Solve for x
    x = 507,520,710.49/25,662.81
  6. Step 6: Final answer
    x = 19,776.51

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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.