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Finding the Fourth Proportional to 8,888.42, 12,265.19 and 5,696.08

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Solution

The fourth proportional to 8,888.42, 12,265.19 and 5,696.08 is: 7,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.42 : 12,265.19 = 5,696.08 : x
  2. Step 2: Convert to fraction form
    8,888.42/12,265.19 = 5,696.08/x
  3. Step 3: Cross multiply
    8,888.42x = 12,265.19 × 5,696.08
  4. Step 4: Simplify right side
    8,888.42x = 69,863,465.67
  5. Step 5: Solve for x
    x = 69,863,465.67/8,888.42
  6. Step 6: Final answer
    x = 7,860.05

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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.