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Finding the Fourth Proportional to 15,812.40, 23,725.98 and 7,046.40

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Solution

The fourth proportional to 15,812.40, 23,725.98 and 7,046.40 is: 10,572.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.40 : 23,725.98 = 7,046.40 : x
  2. Step 2: Convert to fraction form
    15,812.40/23,725.98 = 7,046.40/x
  3. Step 3: Cross multiply
    15,812.40x = 23,725.98 × 7,046.40
  4. Step 4: Simplify right side
    15,812.40x = 167,182,745.47
  5. Step 5: Solve for x
    x = 167,182,745.47/15,812.40
  6. Step 6: Final answer
    x = 10,572.89

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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.