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Finding the Fourth Proportional to 25,670.91, 38,510.02 and 7,903.06

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Solution

The fourth proportional to 25,670.91, 38,510.02 and 7,903.06 is: 11,855.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,670.91 : 38,510.02 = 7,903.06 : x
  2. Step 2: Convert to fraction form
    25,670.91/38,510.02 = 7,903.06/x
  3. Step 3: Cross multiply
    25,670.91x = 38,510.02 × 7,903.06
  4. Step 4: Simplify right side
    25,670.91x = 304,346,882.63
  5. Step 5: Solve for x
    x = 304,346,882.63/25,670.91
  6. Step 6: Final answer
    x = 11,855.71

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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.