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Finding the Fourth Proportional to 7,482.65, 10,325.94 and 4,125.78

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Solution

The fourth proportional to 7,482.65, 10,325.94 and 4,125.78 is: 5,693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.65 : 10,325.94 = 4,125.78 : x
  2. Step 2: Convert to fraction form
    7,482.65/10,325.94 = 4,125.78/x
  3. Step 3: Cross multiply
    7,482.65x = 10,325.94 × 4,125.78
  4. Step 4: Simplify right side
    7,482.65x = 42,602,556.73
  5. Step 5: Solve for x
    x = 42,602,556.73/7,482.65
  6. Step 6: Final answer
    x = 5,693.51

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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.