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Finding the Fourth Proportional to 8,762.11, 12,091.88 and 4,783.39

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Solution

The fourth proportional to 8,762.11, 12,091.88 and 4,783.39 is: 6,601.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.11 : 12,091.88 = 4,783.39 : x
  2. Step 2: Convert to fraction form
    8,762.11/12,091.88 = 4,783.39/x
  3. Step 3: Cross multiply
    8,762.11x = 12,091.88 × 4,783.39
  4. Step 4: Simplify right side
    8,762.11x = 57,840,159.60
  5. Step 5: Solve for x
    x = 57,840,159.60/8,762.11
  6. Step 6: Final answer
    x = 6,601.17

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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.