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Finding the Fourth Proportional to 9,171.61, 13,762.10 and 4,368.49

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Solution

The fourth proportional to 9,171.61, 13,762.10 and 4,368.49 is: 6,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.61 : 13,762.10 = 4,368.49 : x
  2. Step 2: Convert to fraction form
    9,171.61/13,762.10 = 4,368.49/x
  3. Step 3: Cross multiply
    9,171.61x = 13,762.10 × 4,368.49
  4. Step 4: Simplify right side
    9,171.61x = 60,119,572.74
  5. Step 5: Solve for x
    x = 60,119,572.74/9,171.61
  6. Step 6: Final answer
    x = 6,554.97

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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.