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Finding the Fourth Proportional to 74,873.87, 103,325.15 and 40,882.25

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Solution

The fourth proportional to 74,873.87, 103,325.15 and 40,882.25 is: 56,417.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,873.87 : 103,325.15 = 40,882.25 : x
  2. Step 2: Convert to fraction form
    74,873.87/103,325.15 = 40,882.25/x
  3. Step 3: Cross multiply
    74,873.87x = 103,325.15 × 40,882.25
  4. Step 4: Simplify right side
    74,873.87x = 4,224,163,892.55
  5. Step 5: Solve for x
    x = 4,224,163,892.55/74,873.87
  6. Step 6: Final answer
    x = 56,417.07

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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.