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Finding the Fourth Proportional to 37,980.54, 56,970.95 and 11,685.11

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Solution

The fourth proportional to 37,980.54, 56,970.95 and 11,685.11 is: 17,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,980.54 : 56,970.95 = 11,685.11 : x
  2. Step 2: Convert to fraction form
    37,980.54/56,970.95 = 11,685.11/x
  3. Step 3: Cross multiply
    37,980.54x = 56,970.95 × 11,685.11
  4. Step 4: Simplify right side
    37,980.54x = 665,711,474.27
  5. Step 5: Solve for x
    x = 665,711,474.27/37,980.54
  6. Step 6: Final answer
    x = 17,527.70

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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.