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Finding the Fourth Proportional to 5,613.12, 8,421.19 and 5,001.03

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Solution

The fourth proportional to 5,613.12, 8,421.19 and 5,001.03 is: 7,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.12 : 8,421.19 = 5,001.03 : x
  2. Step 2: Convert to fraction form
    5,613.12/8,421.19 = 5,001.03/x
  3. Step 3: Cross multiply
    5,613.12x = 8,421.19 × 5,001.03
  4. Step 4: Simplify right side
    5,613.12x = 42,114,611.32
  5. Step 5: Solve for x
    x = 42,114,611.32/5,613.12
  6. Step 6: Final answer
    x = 7,502.89

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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.