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Finding the Fourth Proportional to 30,218.46, 45,312.03 and 15,994.65

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Solution

The fourth proportional to 30,218.46, 45,312.03 and 15,994.65 is: 23,983.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,218.46 : 45,312.03 = 15,994.65 : x
  2. Step 2: Convert to fraction form
    30,218.46/45,312.03 = 15,994.65/x
  3. Step 3: Cross multiply
    30,218.46x = 45,312.03 × 15,994.65
  4. Step 4: Simplify right side
    30,218.46x = 724,750,060.64
  5. Step 5: Solve for x
    x = 724,750,060.64/30,218.46
  6. Step 6: Final answer
    x = 23,983.68

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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.