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Finding the Fourth Proportional to 40,510.80, 55,930.92 and 25,424.16

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Solution

The fourth proportional to 40,510.80, 55,930.92 and 25,424.16 is: 35,101.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,510.80 : 55,930.92 = 25,424.16 : x
  2. Step 2: Convert to fraction form
    40,510.80/55,930.92 = 25,424.16/x
  3. Step 3: Cross multiply
    40,510.80x = 55,930.92 × 25,424.16
  4. Step 4: Simplify right side
    40,510.80x = 1,421,996,659.03
  5. Step 5: Solve for x
    x = 1,421,996,659.03/40,510.80
  6. Step 6: Final answer
    x = 35,101.67

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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.