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Finding the Fourth Proportional to 29,415.78, 40,583.04 and 19,349.64

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Solution

The fourth proportional to 29,415.78, 40,583.04 and 19,349.64 is: 26,695.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,415.78 : 40,583.04 = 19,349.64 : x
  2. Step 2: Convert to fraction form
    29,415.78/40,583.04 = 19,349.64/x
  3. Step 3: Cross multiply
    29,415.78x = 40,583.04 × 19,349.64
  4. Step 4: Simplify right side
    29,415.78x = 785,267,214.11
  5. Step 5: Solve for x
    x = 785,267,214.11/29,415.78
  6. Step 6: Final answer
    x = 26,695.44

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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.