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Finding the Fourth Proportional to 74,595.52, 102,943.97 and 40,606.21

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Solution

The fourth proportional to 74,595.52, 102,943.97 and 40,606.21 is: 56,037.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,595.52 : 102,943.97 = 40,606.21 : x
  2. Step 2: Convert to fraction form
    74,595.52/102,943.97 = 40,606.21/x
  3. Step 3: Cross multiply
    74,595.52x = 102,943.97 × 40,606.21
  4. Step 4: Simplify right side
    74,595.52x = 4,180,164,464.05
  5. Step 5: Solve for x
    x = 4,180,164,464.05/74,595.52
  6. Step 6: Final answer
    x = 56,037.74

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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.