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Finding the Fourth Proportional to 8,701.95, 12,004.95 and 5,871.15

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Solution

The fourth proportional to 8,701.95, 12,004.95 and 5,871.15 is: 8,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.95 : 12,004.95 = 5,871.15 : x
  2. Step 2: Convert to fraction form
    8,701.95/12,004.95 = 5,871.15/x
  3. Step 3: Cross multiply
    8,701.95x = 12,004.95 × 5,871.15
  4. Step 4: Simplify right side
    8,701.95x = 70,482,862.19
  5. Step 5: Solve for x
    x = 70,482,862.19/8,701.95
  6. Step 6: Final answer
    x = 8,099.66

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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.