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Finding the Fourth Proportional to 42,394.40, 63,620.40 and 23,674.40

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Solution

The fourth proportional to 42,394.40, 63,620.40 and 23,674.40 is: 35,527.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,394.40 : 63,620.40 = 23,674.40 : x
  2. Step 2: Convert to fraction form
    42,394.40/63,620.40 = 23,674.40/x
  3. Step 3: Cross multiply
    42,394.40x = 63,620.40 × 23,674.40
  4. Step 4: Simplify right side
    42,394.40x = 1,506,174,797.76
  5. Step 5: Solve for x
    x = 1,506,174,797.76/42,394.40
  6. Step 6: Final answer
    x = 35,527.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.