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Finding the Fourth Proportional to 7,124.79, 9,835.65 and 4,473.66

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Solution

The fourth proportional to 7,124.79, 9,835.65 and 4,473.66 is: 6,175.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.79 : 9,835.65 = 4,473.66 : x
  2. Step 2: Convert to fraction form
    7,124.79/9,835.65 = 4,473.66/x
  3. Step 3: Cross multiply
    7,124.79x = 9,835.65 × 4,473.66
  4. Step 4: Simplify right side
    7,124.79x = 44,001,353.98
  5. Step 5: Solve for x
    x = 44,001,353.98/7,124.79
  6. Step 6: Final answer
    x = 6,175.81

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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.