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Finding the Fourth Proportional to 32,419.84, 44,738.76 and 18,272.40

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Solution

The fourth proportional to 32,419.84, 44,738.76 and 18,272.40 is: 25,215.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,419.84 : 44,738.76 = 18,272.40 : x
  2. Step 2: Convert to fraction form
    32,419.84/44,738.76 = 18,272.40/x
  3. Step 3: Cross multiply
    32,419.84x = 44,738.76 × 18,272.40
  4. Step 4: Simplify right side
    32,419.84x = 817,484,518.22
  5. Step 5: Solve for x
    x = 817,484,518.22/32,419.84
  6. Step 6: Final answer
    x = 25,215.56

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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.