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Finding the Fourth Proportional to 14,005.77, 19,327.95 and 7,718.19

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Solution

The fourth proportional to 14,005.77, 19,327.95 and 7,718.19 is: 10,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.77 : 19,327.95 = 7,718.19 : x
  2. Step 2: Convert to fraction form
    14,005.77/19,327.95 = 7,718.19/x
  3. Step 3: Cross multiply
    14,005.77x = 19,327.95 × 7,718.19
  4. Step 4: Simplify right side
    14,005.77x = 149,176,790.41
  5. Step 5: Solve for x
    x = 149,176,790.41/14,005.77
  6. Step 6: Final answer
    x = 10,651.10

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Half scale
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Double scale
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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.