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Finding the Fourth Proportional to 15,816.40, 23,731.98 and 7,050.40

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Solution

The fourth proportional to 15,816.40, 23,731.98 and 7,050.40 is: 10,578.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.40 : 23,731.98 = 7,050.40 : x
  2. Step 2: Convert to fraction form
    15,816.40/23,731.98 = 7,050.40/x
  3. Step 3: Cross multiply
    15,816.40x = 23,731.98 × 7,050.40
  4. Step 4: Simplify right side
    15,816.40x = 167,319,951.79
  5. Step 5: Solve for x
    x = 167,319,951.79/15,816.40
  6. Step 6: Final answer
    x = 10,578.89

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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.