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Finding the Fourth Proportional to 16,587.62, 22,886.94 and 9,415.94

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Solution

The fourth proportional to 16,587.62, 22,886.94 and 9,415.94 is: 12,991.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,587.62 : 22,886.94 = 9,415.94 : x
  2. Step 2: Convert to fraction form
    16,587.62/22,886.94 = 9,415.94/x
  3. Step 3: Cross multiply
    16,587.62x = 22,886.94 × 9,415.94
  4. Step 4: Simplify right side
    16,587.62x = 215,502,053.82
  5. Step 5: Solve for x
    x = 215,502,053.82/16,587.62
  6. Step 6: Final answer
    x = 12,991.74

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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.