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Finding the Fourth Proportional to 7,967.74, 10,995.87 and 4,430.89

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Solution

The fourth proportional to 7,967.74, 10,995.87 and 4,430.89 is: 6,114.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.74 : 10,995.87 = 4,430.89 : x
  2. Step 2: Convert to fraction form
    7,967.74/10,995.87 = 4,430.89/x
  3. Step 3: Cross multiply
    7,967.74x = 10,995.87 × 4,430.89
  4. Step 4: Simplify right side
    7,967.74x = 48,721,490.42
  5. Step 5: Solve for x
    x = 48,721,490.42/7,967.74
  6. Step 6: Final answer
    x = 6,114.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.