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Finding the Fourth Proportional to 8,385.16, 12,567.66 and 5,916.28

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Solution

The fourth proportional to 8,385.16, 12,567.66 and 5,916.28 is: 8,867.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.16 : 12,567.66 = 5,916.28 : x
  2. Step 2: Convert to fraction form
    8,385.16/12,567.66 = 5,916.28/x
  3. Step 3: Cross multiply
    8,385.16x = 12,567.66 × 5,916.28
  4. Step 4: Simplify right side
    8,385.16x = 74,353,795.50
  5. Step 5: Solve for x
    x = 74,353,795.50/8,385.16
  6. Step 6: Final answer
    x = 8,867.31

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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.