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Finding the Fourth Proportional to 14,706.76, 20,275.45 and 9,982.84

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Solution

The fourth proportional to 14,706.76, 20,275.45 and 9,982.84 is: 13,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,706.76 : 20,275.45 = 9,982.84 : x
  2. Step 2: Convert to fraction form
    14,706.76/20,275.45 = 9,982.84/x
  3. Step 3: Cross multiply
    14,706.76x = 20,275.45 × 9,982.84
  4. Step 4: Simplify right side
    14,706.76x = 202,406,573.28
  5. Step 5: Solve for x
    x = 202,406,573.28/14,706.76
  6. Step 6: Final answer
    x = 13,762.83

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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.