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Finding the Fourth Proportional to 1,885.38, 2,602.13 and 1,802.32

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Solution

The fourth proportional to 1,885.38, 2,602.13 and 1,802.32 is: 2,487.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.38 : 2,602.13 = 1,802.32 : x
  2. Step 2: Convert to fraction form
    1,885.38/2,602.13 = 1,802.32/x
  3. Step 3: Cross multiply
    1,885.38x = 2,602.13 × 1,802.32
  4. Step 4: Simplify right side
    1,885.38x = 4,689,870.94
  5. Step 5: Solve for x
    x = 4,689,870.94/1,885.38
  6. Step 6: Final answer
    x = 2,487.49

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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.