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Finding the Fourth Proportional to 21,058.63, 29,060.90 and 11,627.19

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Solution

The fourth proportional to 21,058.63, 29,060.90 and 11,627.19 is: 16,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.63 : 29,060.90 = 11,627.19 : x
  2. Step 2: Convert to fraction form
    21,058.63/29,060.90 = 11,627.19/x
  3. Step 3: Cross multiply
    21,058.63x = 29,060.90 × 11,627.19
  4. Step 4: Simplify right side
    21,058.63x = 337,896,605.87
  5. Step 5: Solve for x
    x = 337,896,605.87/21,058.63
  6. Step 6: Final answer
    x = 16,045.52

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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.