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Finding the Fourth Proportional to 18,720.51, 25,834.17 and 10,337.01

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Solution

The fourth proportional to 18,720.51, 25,834.17 and 10,337.01 is: 14,265.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.51 : 25,834.17 = 10,337.01 : x
  2. Step 2: Convert to fraction form
    18,720.51/25,834.17 = 10,337.01/x
  3. Step 3: Cross multiply
    18,720.51x = 25,834.17 × 10,337.01
  4. Step 4: Simplify right side
    18,720.51x = 267,048,073.63
  5. Step 5: Solve for x
    x = 267,048,073.63/18,720.51
  6. Step 6: Final answer
    x = 14,265.00

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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.