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Finding the Fourth Proportional to 1,006.76, 1,510.15 and 982.46

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Solution

The fourth proportional to 1,006.76, 1,510.15 and 982.46 is: 1,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006.76 : 1,510.15 = 982.46 : x
  2. Step 2: Convert to fraction form
    1,006.76/1,510.15 = 982.46/x
  3. Step 3: Cross multiply
    1,006.76x = 1,510.15 × 982.46
  4. Step 4: Simplify right side
    1,006.76x = 1,483,663.29
  5. Step 5: Solve for x
    x = 1,483,663.29/1,006.76
  6. Step 6: Final answer
    x = 1,473.70

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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.