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Finding the Fourth Proportional to 5,787.54, 7,988.76 and 4,459.54

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Solution

The fourth proportional to 5,787.54, 7,988.76 and 4,459.54 is: 6,155.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.54 : 7,988.76 = 4,459.54 : x
  2. Step 2: Convert to fraction form
    5,787.54/7,988.76 = 4,459.54/x
  3. Step 3: Cross multiply
    5,787.54x = 7,988.76 × 4,459.54
  4. Step 4: Simplify right side
    5,787.54x = 35,626,194.77
  5. Step 5: Solve for x
    x = 35,626,194.77/5,787.54
  6. Step 6: Final answer
    x = 6,155.67

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1.5x scale

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.