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Finding the Fourth Proportional to 14,441.65, 19,929.98 and 8,700.77

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Solution

The fourth proportional to 14,441.65, 19,929.98 and 8,700.77 is: 12,007.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,441.65 : 19,929.98 = 8,700.77 : x
  2. Step 2: Convert to fraction form
    14,441.65/19,929.98 = 8,700.77/x
  3. Step 3: Cross multiply
    14,441.65x = 19,929.98 × 8,700.77
  4. Step 4: Simplify right side
    14,441.65x = 173,406,128.58
  5. Step 5: Solve for x
    x = 173,406,128.58/14,441.65
  6. Step 6: Final answer
    x = 12,007.37

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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.