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Finding the Fourth Proportional to 8,610.99, 12,895.71 and 4,901.97

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Solution

The fourth proportional to 8,610.99, 12,895.71 and 4,901.97 is: 7,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.99 : 12,895.71 = 4,901.97 : x
  2. Step 2: Convert to fraction form
    8,610.99/12,895.71 = 4,901.97/x
  3. Step 3: Cross multiply
    8,610.99x = 12,895.71 × 4,901.97
  4. Step 4: Simplify right side
    8,610.99x = 63,214,383.55
  5. Step 5: Solve for x
    x = 63,214,383.55/8,610.99
  6. Step 6: Final answer
    x = 7,341.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.