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Finding the Fourth Proportional to 3,646.76, 5,470.61 and 1,049.63

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Solution

The fourth proportional to 3,646.76, 5,470.61 and 1,049.63 is: 1,574.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646.76 : 5,470.61 = 1,049.63 : x
  2. Step 2: Convert to fraction form
    3,646.76/5,470.61 = 1,049.63/x
  3. Step 3: Cross multiply
    3,646.76x = 5,470.61 × 1,049.63
  4. Step 4: Simplify right side
    3,646.76x = 5,742,083.77
  5. Step 5: Solve for x
    x = 5,742,083.77/3,646.76
  6. Step 6: Final answer
    x = 1,574.57

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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.