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Finding the Fourth Proportional to 12,347.73, 17,035.65 and 7,038.72

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Solution

The fourth proportional to 12,347.73, 17,035.65 and 7,038.72 is: 9,711.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.73 : 17,035.65 = 7,038.72 : x
  2. Step 2: Convert to fraction form
    12,347.73/17,035.65 = 7,038.72/x
  3. Step 3: Cross multiply
    12,347.73x = 17,035.65 × 7,038.72
  4. Step 4: Simplify right side
    12,347.73x = 119,909,170.37
  5. Step 5: Solve for x
    x = 119,909,170.37/12,347.73
  6. Step 6: Final answer
    x = 9,711.03

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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.