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Finding the Fourth Proportional to 7,210.32, 9,953.58 and 5,087.58

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Solution

The fourth proportional to 7,210.32, 9,953.58 and 5,087.58 is: 7,023.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.32 : 9,953.58 = 5,087.58 : x
  2. Step 2: Convert to fraction form
    7,210.32/9,953.58 = 5,087.58/x
  3. Step 3: Cross multiply
    7,210.32x = 9,953.58 × 5,087.58
  4. Step 4: Simplify right side
    7,210.32x = 50,639,634.54
  5. Step 5: Solve for x
    x = 50,639,634.54/7,210.32
  6. Step 6: Final answer
    x = 7,023.22

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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.