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Finding the Fourth Proportional to 4,838.15, 7,258.24 and 1,916.48

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Solution

The fourth proportional to 4,838.15, 7,258.24 and 1,916.48 is: 2,875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,838.15 : 7,258.24 = 1,916.48 : x
  2. Step 2: Convert to fraction form
    4,838.15/7,258.24 = 1,916.48/x
  3. Step 3: Cross multiply
    4,838.15x = 7,258.24 × 1,916.48
  4. Step 4: Simplify right side
    4,838.15x = 13,910,271.80
  5. Step 5: Solve for x
    x = 13,910,271.80/4,838.15
  6. Step 6: Final answer
    x = 2,875.12

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1.5x scale

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.