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Finding the Fourth Proportional to 9,655.40, 14,494.80 and 6,145.40

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Solution

The fourth proportional to 9,655.40, 14,494.80 and 6,145.40 is: 9,225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,655.40 : 14,494.80 = 6,145.40 : x
  2. Step 2: Convert to fraction form
    9,655.40/14,494.80 = 6,145.40/x
  3. Step 3: Cross multiply
    9,655.40x = 14,494.80 × 6,145.40
  4. Step 4: Simplify right side
    9,655.40x = 89,076,343.92
  5. Step 5: Solve for x
    x = 89,076,343.92/9,655.40
  6. Step 6: Final answer
    x = 9,225.55

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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.