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Finding the Fourth Proportional to 16,262.76, 22,442.60 and 8,810.76

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Solution

The fourth proportional to 16,262.76, 22,442.60 and 8,810.76 is: 12,158.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,262.76 : 22,442.60 = 8,810.76 : x
  2. Step 2: Convert to fraction form
    16,262.76/22,442.60 = 8,810.76/x
  3. Step 3: Cross multiply
    16,262.76x = 22,442.60 × 8,810.76
  4. Step 4: Simplify right side
    16,262.76x = 197,736,362.38
  5. Step 5: Solve for x
    x = 197,736,362.38/16,262.76
  6. Step 6: Final answer
    x = 12,158.84

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Half scale
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Double scale
Find fourth proportional to 16,263.76, 22,443.98 and 8,811.76
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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.