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Finding the Fourth Proportional to 14,460.15, 19,955.15 and 8,491.93

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Solution

The fourth proportional to 14,460.15, 19,955.15 and 8,491.93 is: 11,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,460.15 : 19,955.15 = 8,491.93 : x
  2. Step 2: Convert to fraction form
    14,460.15/19,955.15 = 8,491.93/x
  3. Step 3: Cross multiply
    14,460.15x = 19,955.15 × 8,491.93
  4. Step 4: Simplify right side
    14,460.15x = 169,457,736.94
  5. Step 5: Solve for x
    x = 169,457,736.94/14,460.15
  6. Step 6: Final answer
    x = 11,718.95

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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.