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Finding the Fourth Proportional to 7,189.56, 9,926.15 and 4,501.85

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Solution

The fourth proportional to 7,189.56, 9,926.15 and 4,501.85 is: 6,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.56 : 9,926.15 = 4,501.85 : x
  2. Step 2: Convert to fraction form
    7,189.56/9,926.15 = 4,501.85/x
  3. Step 3: Cross multiply
    7,189.56x = 9,926.15 × 4,501.85
  4. Step 4: Simplify right side
    7,189.56x = 44,685,966.24
  5. Step 5: Solve for x
    x = 44,685,966.24/7,189.56
  6. Step 6: Final answer
    x = 6,215.40

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Double scale
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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.