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Finding the Fourth Proportional to 1,152.84, 1,592.22 and 761.58

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Solution

The fourth proportional to 1,152.84, 1,592.22 and 761.58 is: 1,051.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.84 : 1,592.22 = 761.58 : x
  2. Step 2: Convert to fraction form
    1,152.84/1,592.22 = 761.58/x
  3. Step 3: Cross multiply
    1,152.84x = 1,592.22 × 761.58
  4. Step 4: Simplify right side
    1,152.84x = 1,212,602.91
  5. Step 5: Solve for x
    x = 1,212,602.91/1,152.84
  6. Step 6: Final answer
    x = 1,051.84

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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.