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Finding the Fourth Proportional to 7,123.93, 10,685.08 and 2,964.58

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Solution

The fourth proportional to 7,123.93, 10,685.08 and 2,964.58 is: 4,446.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.93 : 10,685.08 = 2,964.58 : x
  2. Step 2: Convert to fraction form
    7,123.93/10,685.08 = 2,964.58/x
  3. Step 3: Cross multiply
    7,123.93x = 10,685.08 × 2,964.58
  4. Step 4: Simplify right side
    7,123.93x = 31,676,774.47
  5. Step 5: Solve for x
    x = 31,676,774.47/7,123.93
  6. Step 6: Final answer
    x = 4,446.53

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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.