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Finding the Fourth Proportional to 32,630.60, 45,032.82 and 18,486.92

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Solution

The fourth proportional to 32,630.60, 45,032.82 and 18,486.92 is: 25,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,630.60 : 45,032.82 = 18,486.92 : x
  2. Step 2: Convert to fraction form
    32,630.60/45,032.82 = 18,486.92/x
  3. Step 3: Cross multiply
    32,630.60x = 45,032.82 × 18,486.92
  4. Step 4: Simplify right side
    32,630.60x = 832,518,140.71
  5. Step 5: Solve for x
    x = 832,518,140.71/32,630.60
  6. Step 6: Final answer
    x = 25,513.42

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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.