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Finding the Fourth Proportional to 9,995.70, 14,998.95 and 4,152.90

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Solution

The fourth proportional to 9,995.70, 14,998.95 and 4,152.90 is: 6,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,995.70 : 14,998.95 = 4,152.90 : x
  2. Step 2: Convert to fraction form
    9,995.70/14,998.95 = 4,152.90/x
  3. Step 3: Cross multiply
    9,995.70x = 14,998.95 × 4,152.90
  4. Step 4: Simplify right side
    9,995.70x = 62,289,139.46
  5. Step 5: Solve for x
    x = 62,289,139.46/9,995.70
  6. Step 6: Final answer
    x = 6,231.59

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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.