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Finding the Fourth Proportional to 14,439.51, 19,925.25 and 8,065.24

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Solution

The fourth proportional to 14,439.51, 19,925.25 and 8,065.24 is: 11,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.51 : 19,925.25 = 8,065.24 : x
  2. Step 2: Convert to fraction form
    14,439.51/19,925.25 = 8,065.24/x
  3. Step 3: Cross multiply
    14,439.51x = 19,925.25 × 8,065.24
  4. Step 4: Simplify right side
    14,439.51x = 160,701,882.98
  5. Step 5: Solve for x
    x = 160,701,882.98/14,439.51
  6. Step 6: Final answer
    x = 11,129.32

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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.