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Finding the Fourth Proportional to 20,672.01, 28,530.27 and 14,948.06

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Solution

The fourth proportional to 20,672.01, 28,530.27 and 14,948.06 is: 20,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.01 : 28,530.27 = 14,948.06 : x
  2. Step 2: Convert to fraction form
    20,672.01/28,530.27 = 14,948.06/x
  3. Step 3: Cross multiply
    20,672.01x = 28,530.27 × 14,948.06
  4. Step 4: Simplify right side
    20,672.01x = 426,472,045.12
  5. Step 5: Solve for x
    x = 426,472,045.12/20,672.01
  6. Step 6: Final answer
    x = 20,630.41

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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.