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Finding the Fourth Proportional to 12,367.68, 17,068.53 and 7,064.20

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Solution

The fourth proportional to 12,367.68, 17,068.53 and 7,064.20 is: 9,749.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,367.68 : 17,068.53 = 7,064.20 : x
  2. Step 2: Convert to fraction form
    12,367.68/17,068.53 = 7,064.20/x
  3. Step 3: Cross multiply
    12,367.68x = 17,068.53 × 7,064.20
  4. Step 4: Simplify right side
    12,367.68x = 120,575,509.63
  5. Step 5: Solve for x
    x = 120,575,509.63/12,367.68
  6. Step 6: Final answer
    x = 9,749.24

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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.