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Finding the Fourth Proportional to 32,649.71, 45,048.74 and 20,708.69

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Solution

The fourth proportional to 32,649.71, 45,048.74 and 20,708.69 is: 28,573.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,649.71 : 45,048.74 = 20,708.69 : x
  2. Step 2: Convert to fraction form
    32,649.71/45,048.74 = 20,708.69/x
  3. Step 3: Cross multiply
    32,649.71x = 45,048.74 × 20,708.69
  4. Step 4: Simplify right side
    32,649.71x = 932,900,400.63
  5. Step 5: Solve for x
    x = 932,900,400.63/32,649.71
  6. Step 6: Final answer
    x = 28,573.01

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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.