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Finding the Fourth Proportional to 10,808.76, 14,916.08 and 5,840.76

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Solution

The fourth proportional to 10,808.76, 14,916.08 and 5,840.76 is: 8,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,808.76 : 14,916.08 = 5,840.76 : x
  2. Step 2: Convert to fraction form
    10,808.76/14,916.08 = 5,840.76/x
  3. Step 3: Cross multiply
    10,808.76x = 14,916.08 × 5,840.76
  4. Step 4: Simplify right side
    10,808.76x = 87,121,243.42
  5. Step 5: Solve for x
    x = 87,121,243.42/10,808.76
  6. Step 6: Final answer
    x = 8,060.24

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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.