Home / 32,976.45-45,509.73-18,631.30

Finding the Fourth Proportional to 32,976.45, 45,509.73 and 18,631.30

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Solution

The fourth proportional to 32,976.45, 45,509.73 and 18,631.30 is: 25,712.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,976.45 : 45,509.73 = 18,631.30 : x
  2. Step 2: Convert to fraction form
    32,976.45/45,509.73 = 18,631.30/x
  3. Step 3: Cross multiply
    32,976.45x = 45,509.73 × 18,631.30
  4. Step 4: Simplify right side
    32,976.45x = 847,905,432.55
  5. Step 5: Solve for x
    x = 847,905,432.55/32,976.45
  6. Step 6: Final answer
    x = 25,712.45

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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.