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Finding the Fourth Proportional to 2,875.50, 4,315.17 and 1,051.50

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Solution

The fourth proportional to 2,875.50, 4,315.17 and 1,051.50 is: 1,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.50 : 4,315.17 = 1,051.50 : x
  2. Step 2: Convert to fraction form
    2,875.50/4,315.17 = 1,051.50/x
  3. Step 3: Cross multiply
    2,875.50x = 4,315.17 × 1,051.50
  4. Step 4: Simplify right side
    2,875.50x = 4,537,401.26
  5. Step 5: Solve for x
    x = 4,537,401.26/2,875.50
  6. Step 6: Final answer
    x = 1,577.95

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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.