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Finding the Fourth Proportional to 29,003.59, 40,023.61 and 16,428.43

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Solution

The fourth proportional to 29,003.59, 40,023.61 and 16,428.43 is: 22,670.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,003.59 : 40,023.61 = 16,428.43 : x
  2. Step 2: Convert to fraction form
    29,003.59/40,023.61 = 16,428.43/x
  3. Step 3: Cross multiply
    29,003.59x = 40,023.61 × 16,428.43
  4. Step 4: Simplify right side
    29,003.59x = 657,525,075.23
  5. Step 5: Solve for x
    x = 657,525,075.23/29,003.59
  6. Step 6: Final answer
    x = 22,670.47

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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.