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Finding the Fourth Proportional to 8,740.95, 12,062.48 and 4,762.05

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Solution

The fourth proportional to 8,740.95, 12,062.48 and 4,762.05 is: 6,571.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.95 : 12,062.48 = 4,762.05 : x
  2. Step 2: Convert to fraction form
    8,740.95/12,062.48 = 4,762.05/x
  3. Step 3: Cross multiply
    8,740.95x = 12,062.48 × 4,762.05
  4. Step 4: Simplify right side
    8,740.95x = 57,442,109.07
  5. Step 5: Solve for x
    x = 57,442,109.07/8,740.95
  6. Step 6: Final answer
    x = 6,571.61

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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.