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Finding the Fourth Proportional to 32,831.70, 45,309.70 and 18,684.66

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Solution

The fourth proportional to 32,831.70, 45,309.70 and 18,684.66 is: 25,785.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,831.70 : 45,309.70 = 18,684.66 : x
  2. Step 2: Convert to fraction form
    32,831.70/45,309.70 = 18,684.66/x
  3. Step 3: Cross multiply
    32,831.70x = 45,309.70 × 18,684.66
  4. Step 4: Simplify right side
    32,831.70x = 846,596,339.20
  5. Step 5: Solve for x
    x = 846,596,339.20/32,831.70
  6. Step 6: Final answer
    x = 25,785.94

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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.