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Finding the Fourth Proportional to 30,582.54, 42,204.54 and 17,154.74

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Solution

The fourth proportional to 30,582.54, 42,204.54 and 17,154.74 is: 23,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,582.54 : 42,204.54 = 17,154.74 : x
  2. Step 2: Convert to fraction form
    30,582.54/42,204.54 = 17,154.74/x
  3. Step 3: Cross multiply
    30,582.54x = 42,204.54 × 17,154.74
  4. Step 4: Simplify right side
    30,582.54x = 724,007,842.96
  5. Step 5: Solve for x
    x = 724,007,842.96/30,582.54
  6. Step 6: Final answer
    x = 23,673.90

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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.