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Finding the Fourth Proportional to 14,378.77, 21,581.02 and 7,363.58

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Solution

The fourth proportional to 14,378.77, 21,581.02 and 7,363.58 is: 11,051.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.77 : 21,581.02 = 7,363.58 : x
  2. Step 2: Convert to fraction form
    14,378.77/21,581.02 = 7,363.58/x
  3. Step 3: Cross multiply
    14,378.77x = 21,581.02 × 7,363.58
  4. Step 4: Simplify right side
    14,378.77x = 158,913,427.13
  5. Step 5: Solve for x
    x = 158,913,427.13/14,378.77
  6. Step 6: Final answer
    x = 11,051.95

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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.