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Finding the Fourth Proportional to 35,478.68, 48,960.65 and 19,562.99

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Solution

The fourth proportional to 35,478.68, 48,960.65 and 19,562.99 is: 26,996.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,478.68 : 48,960.65 = 19,562.99 : x
  2. Step 2: Convert to fraction form
    35,478.68/48,960.65 = 19,562.99/x
  3. Step 3: Cross multiply
    35,478.68x = 48,960.65 × 19,562.99
  4. Step 4: Simplify right side
    35,478.68x = 957,816,510.45
  5. Step 5: Solve for x
    x = 957,816,510.45/35,478.68
  6. Step 6: Final answer
    x = 26,996.96

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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.