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Finding the Fourth Proportional to 1,587.93, 2,191.57 and 924.99

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Solution

The fourth proportional to 1,587.93, 2,191.57 and 924.99 is: 1,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.93 : 2,191.57 = 924.99 : x
  2. Step 2: Convert to fraction form
    1,587.93/2,191.57 = 924.99/x
  3. Step 3: Cross multiply
    1,587.93x = 2,191.57 × 924.99
  4. Step 4: Simplify right side
    1,587.93x = 2,027,181.19
  5. Step 5: Solve for x
    x = 2,027,181.19/1,587.93
  6. Step 6: Final answer
    x = 1,276.62

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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.