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Finding the Fourth Proportional to 52,602.70, 72,591.62 and 28,729.36

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Solution

The fourth proportional to 52,602.70, 72,591.62 and 28,729.36 is: 39,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,602.70 : 72,591.62 = 28,729.36 : x
  2. Step 2: Convert to fraction form
    52,602.70/72,591.62 = 28,729.36/x
  3. Step 3: Cross multiply
    52,602.70x = 72,591.62 × 28,729.36
  4. Step 4: Simplify right side
    52,602.70x = 2,085,510,783.96
  5. Step 5: Solve for x
    x = 2,085,510,783.96/52,602.70
  6. Step 6: Final answer
    x = 39,646.46

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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.