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Finding the Fourth Proportional to 5,225.61, 7,210.70 and 2,867.70

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Solution

The fourth proportional to 5,225.61, 7,210.70 and 2,867.70 is: 3,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.61 : 7,210.70 = 2,867.70 : x
  2. Step 2: Convert to fraction form
    5,225.61/7,210.70 = 2,867.70/x
  3. Step 3: Cross multiply
    5,225.61x = 7,210.70 × 2,867.70
  4. Step 4: Simplify right side
    5,225.61x = 20,678,124.39
  5. Step 5: Solve for x
    x = 20,678,124.39/5,225.61
  6. Step 6: Final answer
    x = 3,957.07

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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.