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Finding the Fourth Proportional to 18,319.02, 27,469.29 and 13,051.02

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Solution

The fourth proportional to 18,319.02, 27,469.29 and 13,051.02 is: 19,569.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.02 : 27,469.29 = 13,051.02 : x
  2. Step 2: Convert to fraction form
    18,319.02/27,469.29 = 13,051.02/x
  3. Step 3: Cross multiply
    18,319.02x = 27,469.29 × 13,051.02
  4. Step 4: Simplify right side
    18,319.02x = 358,502,253.18
  5. Step 5: Solve for x
    x = 358,502,253.18/18,319.02
  6. Step 6: Final answer
    x = 19,569.95

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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.