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Finding the Fourth Proportional to 8,641.95, 11,925.72 and 5,059.02

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Solution

The fourth proportional to 8,641.95, 11,925.72 and 5,059.02 is: 6,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641.95 : 11,925.72 = 5,059.02 : x
  2. Step 2: Convert to fraction form
    8,641.95/11,925.72 = 5,059.02/x
  3. Step 3: Cross multiply
    8,641.95x = 11,925.72 × 5,059.02
  4. Step 4: Simplify right side
    8,641.95x = 60,332,455.99
  5. Step 5: Solve for x
    x = 60,332,455.99/8,641.95
  6. Step 6: Final answer
    x = 6,981.35

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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.