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Finding the Fourth Proportional to 8,632.63, 11,909.65 and 4,854.93

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Solution

The fourth proportional to 8,632.63, 11,909.65 and 4,854.93 is: 6,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.63 : 11,909.65 = 4,854.93 : x
  2. Step 2: Convert to fraction form
    8,632.63/11,909.65 = 4,854.93/x
  3. Step 3: Cross multiply
    8,632.63x = 11,909.65 × 4,854.93
  4. Step 4: Simplify right side
    8,632.63x = 57,820,483.03
  5. Step 5: Solve for x
    x = 57,820,483.03/8,632.63
  6. Step 6: Final answer
    x = 6,697.90

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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.