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Finding the Fourth Proportional to 8,795.61, 12,139.11 and 5,017.92

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Solution

The fourth proportional to 8,795.61, 12,139.11 and 5,017.92 is: 6,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795.61 : 12,139.11 = 5,017.92 : x
  2. Step 2: Convert to fraction form
    8,795.61/12,139.11 = 5,017.92/x
  3. Step 3: Cross multiply
    8,795.61x = 12,139.11 × 5,017.92
  4. Step 4: Simplify right side
    8,795.61x = 60,913,082.85
  5. Step 5: Solve for x
    x = 60,913,082.85/8,795.61
  6. Step 6: Final answer
    x = 6,925.40

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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.