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Finding the Fourth Proportional to 9,387.19, 14,114.54 and 8,655.74

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Solution

The fourth proportional to 9,387.19, 14,114.54 and 8,655.74 is: 13,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.19 : 14,114.54 = 8,655.74 : x
  2. Step 2: Convert to fraction form
    9,387.19/14,114.54 = 8,655.74/x
  3. Step 3: Cross multiply
    9,387.19x = 14,114.54 × 8,655.74
  4. Step 4: Simplify right side
    9,387.19x = 122,171,788.46
  5. Step 5: Solve for x
    x = 122,171,788.46/9,387.19
  6. Step 6: Final answer
    x = 13,014.73

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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.