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Finding the Fourth Proportional to 28,594.34, 42,908.34 and 11,953.08

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Solution

The fourth proportional to 28,594.34, 42,908.34 and 11,953.08 is: 17,936.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,594.34 : 42,908.34 = 11,953.08 : x
  2. Step 2: Convert to fraction form
    28,594.34/42,908.34 = 11,953.08/x
  3. Step 3: Cross multiply
    28,594.34x = 42,908.34 × 11,953.08
  4. Step 4: Simplify right side
    28,594.34x = 512,886,820.69
  5. Step 5: Solve for x
    x = 512,886,820.69/28,594.34
  6. Step 6: Final answer
    x = 17,936.66

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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.