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Finding the Fourth Proportional to 8,965.89, 13,436.48 and 4,574.17

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Solution

The fourth proportional to 8,965.89, 13,436.48 and 4,574.17 is: 6,854.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.89 : 13,436.48 = 4,574.17 : x
  2. Step 2: Convert to fraction form
    8,965.89/13,436.48 = 4,574.17/x
  3. Step 3: Cross multiply
    8,965.89x = 13,436.48 × 4,574.17
  4. Step 4: Simplify right side
    8,965.89x = 61,460,771.95
  5. Step 5: Solve for x
    x = 61,460,771.95/8,965.89
  6. Step 6: Final answer
    x = 6,854.95

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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.