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Finding the Fourth Proportional to 32,615.76, 45,007.20 and 19,187.52

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Solution

The fourth proportional to 32,615.76, 45,007.20 and 19,187.52 is: 26,477.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,615.76 : 45,007.20 = 19,187.52 : x
  2. Step 2: Convert to fraction form
    32,615.76/45,007.20 = 19,187.52/x
  3. Step 3: Cross multiply
    32,615.76x = 45,007.20 × 19,187.52
  4. Step 4: Simplify right side
    32,615.76x = 863,576,550.14
  5. Step 5: Solve for x
    x = 863,576,550.14/32,615.76
  6. Step 6: Final answer
    x = 26,477.28

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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.