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Finding the Fourth Proportional to 48,595.40, 72,698.70 and 42,093.80

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Solution

The fourth proportional to 48,595.40, 72,698.70 and 42,093.80 is: 62,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,595.40 : 72,698.70 = 42,093.80 : x
  2. Step 2: Convert to fraction form
    48,595.40/72,698.70 = 42,093.80/x
  3. Step 3: Cross multiply
    48,595.40x = 72,698.70 × 42,093.80
  4. Step 4: Simplify right side
    48,595.40x = 3,060,164,538.06
  5. Step 5: Solve for x
    x = 3,060,164,538.06/48,595.40
  6. Step 6: Final answer
    x = 62,972.31

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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.