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Finding the Fourth Proportional to 7,900.63, 10,902.95 and 4,363.77

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Solution

The fourth proportional to 7,900.63, 10,902.95 and 4,363.77 is: 6,022.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.63 : 10,902.95 = 4,363.77 : x
  2. Step 2: Convert to fraction form
    7,900.63/10,902.95 = 4,363.77/x
  3. Step 3: Cross multiply
    7,900.63x = 10,902.95 × 4,363.77
  4. Step 4: Simplify right side
    7,900.63x = 47,577,966.12
  5. Step 5: Solve for x
    x = 47,577,966.12/7,900.63
  6. Step 6: Final answer
    x = 6,022.05

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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.