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Finding the Fourth Proportional to 1,582.47, 2,184.38 and 953.02

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Solution

The fourth proportional to 1,582.47, 2,184.38 and 953.02 is: 1,315.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582.47 : 2,184.38 = 953.02 : x
  2. Step 2: Convert to fraction form
    1,582.47/2,184.38 = 953.02/x
  3. Step 3: Cross multiply
    1,582.47x = 2,184.38 × 953.02
  4. Step 4: Simplify right side
    1,582.47x = 2,081,754.75
  5. Step 5: Solve for x
    x = 2,081,754.75/1,582.47
  6. Step 6: Final answer
    x = 1,315.51

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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.