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Finding the Fourth Proportional to 1,751.16, 2,415.53 and 1,042.53

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Solution

The fourth proportional to 1,751.16, 2,415.53 and 1,042.53 is: 1,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,751.16 : 2,415.53 = 1,042.53 : x
  2. Step 2: Convert to fraction form
    1,751.16/2,415.53 = 1,042.53/x
  3. Step 3: Cross multiply
    1,751.16x = 2,415.53 × 1,042.53
  4. Step 4: Simplify right side
    1,751.16x = 2,518,259.20
  5. Step 5: Solve for x
    x = 2,518,259.20/1,751.16
  6. Step 6: Final answer
    x = 1,438.05

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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.