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Finding the Fourth Proportional to 23,203.60, 34,784.12 and 7,613.20

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Solution

The fourth proportional to 23,203.60, 34,784.12 and 7,613.20 is: 11,412.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,203.60 : 34,784.12 = 7,613.20 : x
  2. Step 2: Convert to fraction form
    23,203.60/34,784.12 = 7,613.20/x
  3. Step 3: Cross multiply
    23,203.60x = 34,784.12 × 7,613.20
  4. Step 4: Simplify right side
    23,203.60x = 264,818,462.38
  5. Step 5: Solve for x
    x = 264,818,462.38/23,203.60
  6. Step 6: Final answer
    x = 11,412.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.