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Finding the Fourth Proportional to 8,932.57, 12,312.73 and 7,041.08

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Solution

The fourth proportional to 8,932.57, 12,312.73 and 7,041.08 is: 9,705.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,932.57 : 12,312.73 = 7,041.08 : x
  2. Step 2: Convert to fraction form
    8,932.57/12,312.73 = 7,041.08/x
  3. Step 3: Cross multiply
    8,932.57x = 12,312.73 × 7,041.08
  4. Step 4: Simplify right side
    8,932.57x = 86,694,916.95
  5. Step 5: Solve for x
    x = 86,694,916.95/8,932.57
  6. Step 6: Final answer
    x = 9,705.48

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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.