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Finding the Fourth Proportional to 40,204.80, 55,483.02 and 22,055.40

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Solution

The fourth proportional to 40,204.80, 55,483.02 and 22,055.40 is: 30,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,204.80 : 55,483.02 = 22,055.40 : x
  2. Step 2: Convert to fraction form
    40,204.80/55,483.02 = 22,055.40/x
  3. Step 3: Cross multiply
    40,204.80x = 55,483.02 × 22,055.40
  4. Step 4: Simplify right side
    40,204.80x = 1,223,700,199.31
  5. Step 5: Solve for x
    x = 1,223,700,199.31/40,204.80
  6. Step 6: Final answer
    x = 30,436.67

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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.