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Finding the Fourth Proportional to 13,562.63, 18,715.65 and 7,594.19

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Solution

The fourth proportional to 13,562.63, 18,715.65 and 7,594.19 is: 10,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.63 : 18,715.65 = 7,594.19 : x
  2. Step 2: Convert to fraction form
    13,562.63/18,715.65 = 7,594.19/x
  3. Step 3: Cross multiply
    13,562.63x = 18,715.65 × 7,594.19
  4. Step 4: Simplify right side
    13,562.63x = 142,130,108.50
  5. Step 5: Solve for x
    x = 142,130,108.50/13,562.63
  6. Step 6: Final answer
    x = 10,479.54

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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.