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Finding the Fourth Proportional to 8,901.75, 12,270.27 and 7,010.34

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Solution

The fourth proportional to 8,901.75, 12,270.27 and 7,010.34 is: 9,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.75 : 12,270.27 = 7,010.34 : x
  2. Step 2: Convert to fraction form
    8,901.75/12,270.27 = 7,010.34/x
  3. Step 3: Cross multiply
    8,901.75x = 12,270.27 × 7,010.34
  4. Step 4: Simplify right side
    8,901.75x = 86,018,764.59
  5. Step 5: Solve for x
    x = 86,018,764.59/8,901.75
  6. Step 6: Final answer
    x = 9,663.13

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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.