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Finding the Fourth Proportional to 10,613.92, 14,646.92 and 5,898.08

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Solution

The fourth proportional to 10,613.92, 14,646.92 and 5,898.08 is: 8,139.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.92 : 14,646.92 = 5,898.08 : x
  2. Step 2: Convert to fraction form
    10,613.92/14,646.92 = 5,898.08/x
  3. Step 3: Cross multiply
    10,613.92x = 14,646.92 × 5,898.08
  4. Step 4: Simplify right side
    10,613.92x = 86,388,705.91
  5. Step 5: Solve for x
    x = 86,388,705.91/10,613.92
  6. Step 6: Final answer
    x = 8,139.19

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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.