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Finding the Fourth Proportional to 1,417.88, 2,124.85 and 793.50

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Solution

The fourth proportional to 1,417.88, 2,124.85 and 793.50 is: 1,189.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.88 : 2,124.85 = 793.50 : x
  2. Step 2: Convert to fraction form
    1,417.88/2,124.85 = 793.50/x
  3. Step 3: Cross multiply
    1,417.88x = 2,124.85 × 793.50
  4. Step 4: Simplify right side
    1,417.88x = 1,686,068.48
  5. Step 5: Solve for x
    x = 1,686,068.48/1,417.88
  6. Step 6: Final answer
    x = 1,189.15

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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.