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Finding the Fourth Proportional to 1,870.85, 2,581.85 and 1,124.76

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Solution

The fourth proportional to 1,870.85, 2,581.85 and 1,124.76 is: 1,552.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.85 : 2,581.85 = 1,124.76 : x
  2. Step 2: Convert to fraction form
    1,870.85/2,581.85 = 1,124.76/x
  3. Step 3: Cross multiply
    1,870.85x = 2,581.85 × 1,124.76
  4. Step 4: Simplify right side
    1,870.85x = 2,903,963.67
  5. Step 5: Solve for x
    x = 2,903,963.67/1,870.85
  6. Step 6: Final answer
    x = 1,552.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.