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Finding the Fourth Proportional to 3,585.51, 5,378.25 and 953.28

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Solution

The fourth proportional to 3,585.51, 5,378.25 and 953.28 is: 1,429.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.51 : 5,378.25 = 953.28 : x
  2. Step 2: Convert to fraction form
    3,585.51/5,378.25 = 953.28/x
  3. Step 3: Cross multiply
    3,585.51x = 5,378.25 × 953.28
  4. Step 4: Simplify right side
    3,585.51x = 5,126,967.10
  5. Step 5: Solve for x
    x = 5,126,967.10/3,585.51
  6. Step 6: Final answer
    x = 1,429.91

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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.