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Finding the Fourth Proportional to 35,818.32, 49,429.80 and 19,903.80

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Solution

The fourth proportional to 35,818.32, 49,429.80 and 19,903.80 is: 27,467.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,818.32 : 49,429.80 = 19,903.80 : x
  2. Step 2: Convert to fraction form
    35,818.32/49,429.80 = 19,903.80/x
  3. Step 3: Cross multiply
    35,818.32x = 49,429.80 × 19,903.80
  4. Step 4: Simplify right side
    35,818.32x = 983,840,853.24
  5. Step 5: Solve for x
    x = 983,840,853.24/35,818.32
  6. Step 6: Final answer
    x = 27,467.53

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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.