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Finding the Fourth Proportional to 1,752.16, 2,627.04 and 777.76

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Solution

The fourth proportional to 1,752.16, 2,627.04 and 777.76 is: 1,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.16 : 2,627.04 = 777.76 : x
  2. Step 2: Convert to fraction form
    1,752.16/2,627.04 = 777.76/x
  3. Step 3: Cross multiply
    1,752.16x = 2,627.04 × 777.76
  4. Step 4: Simplify right side
    1,752.16x = 2,043,206.63
  5. Step 5: Solve for x
    x = 2,043,206.63/1,752.16
  6. Step 6: Final answer
    x = 1,166.11

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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.