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Finding the Fourth Proportional to 42,615.87, 63,923.85 and 23,019.03

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Solution

The fourth proportional to 42,615.87, 63,923.85 and 23,019.03 is: 34,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,615.87 : 63,923.85 = 23,019.03 : x
  2. Step 2: Convert to fraction form
    42,615.87/63,923.85 = 23,019.03/x
  3. Step 3: Cross multiply
    42,615.87x = 63,923.85 × 23,019.03
  4. Step 4: Simplify right side
    42,615.87x = 1,471,465,020.87
  5. Step 5: Solve for x
    x = 1,471,465,020.87/42,615.87
  6. Step 6: Final answer
    x = 34,528.57

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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.