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Finding the Fourth Proportional to 74,589.71, 102,933.74 and 40,598.16

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Solution

The fourth proportional to 74,589.71, 102,933.74 and 40,598.16 is: 56,025.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,589.71 : 102,933.74 = 40,598.16 : x
  2. Step 2: Convert to fraction form
    74,589.71/102,933.74 = 40,598.16/x
  3. Step 3: Cross multiply
    74,589.71x = 102,933.74 × 40,598.16
  4. Step 4: Simplify right side
    74,589.71x = 4,178,920,512.05
  5. Step 5: Solve for x
    x = 4,178,920,512.05/74,589.71
  6. Step 6: Final answer
    x = 56,025.43

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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.