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Finding the Fourth Proportional to 8,973.54, 12,370.65 and 6,312.69

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Solution

The fourth proportional to 8,973.54, 12,370.65 and 6,312.69 is: 8,702.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.54 : 12,370.65 = 6,312.69 : x
  2. Step 2: Convert to fraction form
    8,973.54/12,370.65 = 6,312.69/x
  3. Step 3: Cross multiply
    8,973.54x = 12,370.65 × 6,312.69
  4. Step 4: Simplify right side
    8,973.54x = 78,092,078.55
  5. Step 5: Solve for x
    x = 78,092,078.55/8,973.54
  6. Step 6: Final answer
    x = 8,702.48

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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.