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Finding the Fourth Proportional to 42,654.84, 63,993.60 and 14,574.84

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Solution

The fourth proportional to 42,654.84, 63,993.60 and 14,574.84 is: 21,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,654.84 : 63,993.60 = 14,574.84 : x
  2. Step 2: Convert to fraction form
    42,654.84/63,993.60 = 14,574.84/x
  3. Step 3: Cross multiply
    42,654.84x = 63,993.60 × 14,574.84
  4. Step 4: Simplify right side
    42,654.84x = 932,696,481.02
  5. Step 5: Solve for x
    x = 932,696,481.02/42,654.84
  6. Step 6: Final answer
    x = 21,866.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.