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Finding the Fourth Proportional to 21,052.56, 29,052.59 and 11,621.13

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Solution

The fourth proportional to 21,052.56, 29,052.59 and 11,621.13 is: 16,037.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.56 : 29,052.59 = 11,621.13 : x
  2. Step 2: Convert to fraction form
    21,052.56/29,052.59 = 11,621.13/x
  3. Step 3: Cross multiply
    21,052.56x = 29,052.59 × 11,621.13
  4. Step 4: Simplify right side
    21,052.56x = 337,623,925.23
  5. Step 5: Solve for x
    x = 337,623,925.23/21,052.56
  6. Step 6: Final answer
    x = 16,037.19

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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.