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Finding the Fourth Proportional to 14,119.64, 19,484.64 and 7,832.48

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Solution

The fourth proportional to 14,119.64, 19,484.64 and 7,832.48 is: 10,808.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.64 : 19,484.64 = 7,832.48 : x
  2. Step 2: Convert to fraction form
    14,119.64/19,484.64 = 7,832.48/x
  3. Step 3: Cross multiply
    14,119.64x = 19,484.64 × 7,832.48
  4. Step 4: Simplify right side
    14,119.64x = 152,613,053.11
  5. Step 5: Solve for x
    x = 152,613,053.11/14,119.64
  6. Step 6: Final answer
    x = 10,808.57

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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.