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Finding the Fourth Proportional to 8,312.59, 12,462.29 and 4,798.63

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Solution

The fourth proportional to 8,312.59, 12,462.29 and 4,798.63 is: 7,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.59 : 12,462.29 = 4,798.63 : x
  2. Step 2: Convert to fraction form
    8,312.59/12,462.29 = 4,798.63/x
  3. Step 3: Cross multiply
    8,312.59x = 12,462.29 × 4,798.63
  4. Step 4: Simplify right side
    8,312.59x = 59,801,858.14
  5. Step 5: Solve for x
    x = 59,801,858.14/8,312.59
  6. Step 6: Final answer
    x = 7,194.13

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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.