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Finding the Fourth Proportional to 21,062.71, 31,594.07 and 14,468.90

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Solution

The fourth proportional to 21,062.71, 31,594.07 and 14,468.90 is: 21,703.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.71 : 31,594.07 = 14,468.90 : x
  2. Step 2: Convert to fraction form
    21,062.71/31,594.07 = 14,468.90/x
  3. Step 3: Cross multiply
    21,062.71x = 31,594.07 × 14,468.90
  4. Step 4: Simplify right side
    21,062.71x = 457,131,446.06
  5. Step 5: Solve for x
    x = 457,131,446.06/21,062.71
  6. Step 6: Final answer
    x = 21,703.36

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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.