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Finding the Fourth Proportional to 21,907.17, 32,875.34 and 8,056.17

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Solution

The fourth proportional to 21,907.17, 32,875.34 and 8,056.17 is: 12,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,907.17 : 32,875.34 = 8,056.17 : x
  2. Step 2: Convert to fraction form
    21,907.17/32,875.34 = 8,056.17/x
  3. Step 3: Cross multiply
    21,907.17x = 32,875.34 × 8,056.17
  4. Step 4: Simplify right side
    21,907.17x = 264,849,327.85
  5. Step 5: Solve for x
    x = 264,849,327.85/21,907.17
  6. Step 6: Final answer
    x = 12,089.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.