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Finding the Fourth Proportional to 22,130.84, 30,520.04 and 16,479.47

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Solution

The fourth proportional to 22,130.84, 30,520.04 and 16,479.47 is: 22,726.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.84 : 30,520.04 = 16,479.47 : x
  2. Step 2: Convert to fraction form
    22,130.84/30,520.04 = 16,479.47/x
  3. Step 3: Cross multiply
    22,130.84x = 30,520.04 × 16,479.47
  4. Step 4: Simplify right side
    22,130.84x = 502,953,848.58
  5. Step 5: Solve for x
    x = 502,953,848.58/22,130.84
  6. Step 6: Final answer
    x = 22,726.38

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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.