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Finding the Fourth Proportional to 7,502.60, 11,266.05 and 4,222.10

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Solution

The fourth proportional to 7,502.60, 11,266.05 and 4,222.10 is: 6,339.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,502.60 : 11,266.05 = 4,222.10 : x
  2. Step 2: Convert to fraction form
    7,502.60/11,266.05 = 4,222.10/x
  3. Step 3: Cross multiply
    7,502.60x = 11,266.05 × 4,222.10
  4. Step 4: Simplify right side
    7,502.60x = 47,566,389.71
  5. Step 5: Solve for x
    x = 47,566,389.71/7,502.60
  6. Step 6: Final answer
    x = 6,339.99

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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.