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Finding the Fourth Proportional to 25,488.38, 38,232.56 and 7,020.38

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Solution

The fourth proportional to 25,488.38, 38,232.56 and 7,020.38 is: 10,530.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,488.38 : 38,232.56 = 7,020.38 : x
  2. Step 2: Convert to fraction form
    25,488.38/38,232.56 = 7,020.38/x
  3. Step 3: Cross multiply
    25,488.38x = 38,232.56 × 7,020.38
  4. Step 4: Simplify right side
    25,488.38x = 268,406,925.96
  5. Step 5: Solve for x
    x = 268,406,925.96/25,488.38
  6. Step 6: Final answer
    x = 10,530.56

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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.