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Finding the Fourth Proportional to 32,831.71, 45,309.71 and 18,684.65

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Solution

The fourth proportional to 32,831.71, 45,309.71 and 18,684.65 is: 25,785.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,831.71 : 45,309.71 = 18,684.65 : x
  2. Step 2: Convert to fraction form
    32,831.71/45,309.71 = 18,684.65/x
  3. Step 3: Cross multiply
    32,831.71x = 45,309.71 × 18,684.65
  4. Step 4: Simplify right side
    32,831.71x = 846,596,072.95
  5. Step 5: Solve for x
    x = 846,596,072.95/32,831.71
  6. Step 6: Final answer
    x = 25,785.93

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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.