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Finding the Fourth Proportional to 14,926.65, 20,598.54 and 8,211.87

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Solution

The fourth proportional to 14,926.65, 20,598.54 and 8,211.87 is: 11,332.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,926.65 : 20,598.54 = 8,211.87 : x
  2. Step 2: Convert to fraction form
    14,926.65/20,598.54 = 8,211.87/x
  3. Step 3: Cross multiply
    14,926.65x = 20,598.54 × 8,211.87
  4. Step 4: Simplify right side
    14,926.65x = 169,152,532.67
  5. Step 5: Solve for x
    x = 169,152,532.67/14,926.65
  6. Step 6: Final answer
    x = 11,332.25

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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.