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Finding the Fourth Proportional to 29,374.34, 40,536.45 and 15,945.49

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Solution

The fourth proportional to 29,374.34, 40,536.45 and 15,945.49 is: 22,004.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,374.34 : 40,536.45 = 15,945.49 : x
  2. Step 2: Convert to fraction form
    29,374.34/40,536.45 = 15,945.49/x
  3. Step 3: Cross multiply
    29,374.34x = 40,536.45 × 15,945.49
  4. Step 4: Simplify right side
    29,374.34x = 646,373,558.11
  5. Step 5: Solve for x
    x = 646,373,558.11/29,374.34
  6. Step 6: Final answer
    x = 22,004.70

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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.