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Finding the Fourth Proportional to 11,089.95, 15,302.12 and 6,613.95

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Solution

The fourth proportional to 11,089.95, 15,302.12 and 6,613.95 is: 9,126.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.95 : 15,302.12 = 6,613.95 : x
  2. Step 2: Convert to fraction form
    11,089.95/15,302.12 = 6,613.95/x
  3. Step 3: Cross multiply
    11,089.95x = 15,302.12 × 6,613.95
  4. Step 4: Simplify right side
    11,089.95x = 101,207,423.50
  5. Step 5: Solve for x
    x = 101,207,423.50/11,089.95
  6. Step 6: Final answer
    x = 9,126.05

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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.