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Finding the Fourth Proportional to 48,602.25, 72,903.42 and 13,542.84

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Solution

The fourth proportional to 48,602.25, 72,903.42 and 13,542.84 is: 20,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,602.25 : 72,903.42 = 13,542.84 : x
  2. Step 2: Convert to fraction form
    48,602.25/72,903.42 = 13,542.84/x
  3. Step 3: Cross multiply
    48,602.25x = 72,903.42 × 13,542.84
  4. Step 4: Simplify right side
    48,602.25x = 987,319,352.51
  5. Step 5: Solve for x
    x = 987,319,352.51/48,602.25
  6. Step 6: Final answer
    x = 20,314.27

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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.