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Finding the Fourth Proportional to 10,492.92, 14,480.64 and 5,777.64

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Solution

The fourth proportional to 10,492.92, 14,480.64 and 5,777.64 is: 7,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,492.92 : 14,480.64 = 5,777.64 : x
  2. Step 2: Convert to fraction form
    10,492.92/14,480.64 = 5,777.64/x
  3. Step 3: Cross multiply
    10,492.92x = 14,480.64 × 5,777.64
  4. Step 4: Simplify right side
    10,492.92x = 83,663,924.89
  5. Step 5: Solve for x
    x = 83,663,924.89/10,492.92
  6. Step 6: Final answer
    x = 7,973.37

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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.