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Finding the Fourth Proportional to 18,235.40, 27,353.10 and 15,501.65

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Solution

The fourth proportional to 18,235.40, 27,353.10 and 15,501.65 is: 23,252.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.40 : 27,353.10 = 15,501.65 : x
  2. Step 2: Convert to fraction form
    18,235.40/27,353.10 = 15,501.65/x
  3. Step 3: Cross multiply
    18,235.40x = 27,353.10 × 15,501.65
  4. Step 4: Simplify right side
    18,235.40x = 424,018,182.62
  5. Step 5: Solve for x
    x = 424,018,182.62/18,235.40
  6. Step 6: Final answer
    x = 23,252.48

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Double scale
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Similar ratio
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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.