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Finding the Fourth Proportional to 7,291.05, 10,060.50 and 4,146.63

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Solution

The fourth proportional to 7,291.05, 10,060.50 and 4,146.63 is: 5,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.05 : 10,060.50 = 4,146.63 : x
  2. Step 2: Convert to fraction form
    7,291.05/10,060.50 = 4,146.63/x
  3. Step 3: Cross multiply
    7,291.05x = 10,060.50 × 4,146.63
  4. Step 4: Simplify right side
    7,291.05x = 41,717,171.12
  5. Step 5: Solve for x
    x = 41,717,171.12/7,291.05
  6. Step 6: Final answer
    x = 5,721.70

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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.