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Finding the Fourth Proportional to 29,570.96, 40,807.96 and 18,960.59

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Solution

The fourth proportional to 29,570.96, 40,807.96 and 18,960.59 is: 26,165.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,570.96 : 40,807.96 = 18,960.59 : x
  2. Step 2: Convert to fraction form
    29,570.96/40,807.96 = 18,960.59/x
  3. Step 3: Cross multiply
    29,570.96x = 40,807.96 × 18,960.59
  4. Step 4: Simplify right side
    29,570.96x = 773,742,899.88
  5. Step 5: Solve for x
    x = 773,742,899.88/29,570.96
  6. Step 6: Final answer
    x = 26,165.63

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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.