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Finding the Fourth Proportional to 12,368.74, 17,070.09 and 7,064.35

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Solution

The fourth proportional to 12,368.74, 17,070.09 and 7,064.35 is: 9,749.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.74 : 17,070.09 = 7,064.35 : x
  2. Step 2: Convert to fraction form
    12,368.74/17,070.09 = 7,064.35/x
  3. Step 3: Cross multiply
    12,368.74x = 17,070.09 × 7,064.35
  4. Step 4: Simplify right side
    12,368.74x = 120,589,090.29
  5. Step 5: Solve for x
    x = 120,589,090.29/12,368.74
  6. Step 6: Final answer
    x = 9,749.50

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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.