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Finding the Fourth Proportional to 28,601.47, 42,904.68 and 7,541.37

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Solution

The fourth proportional to 28,601.47, 42,904.68 and 7,541.37 is: 11,312.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.47 : 42,904.68 = 7,541.37 : x
  2. Step 2: Convert to fraction form
    28,601.47/42,904.68 = 7,541.37/x
  3. Step 3: Cross multiply
    28,601.47x = 42,904.68 × 7,541.37
  4. Step 4: Simplify right side
    28,601.47x = 323,560,066.61
  5. Step 5: Solve for x
    x = 323,560,066.61/28,601.47
  6. Step 6: Final answer
    x = 11,312.71

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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.