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Finding the Fourth Proportional to 9,810.56, 14,718.40 and 5,939.84

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Solution

The fourth proportional to 9,810.56, 14,718.40 and 5,939.84 is: 8,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,810.56 : 14,718.40 = 5,939.84 : x
  2. Step 2: Convert to fraction form
    9,810.56/14,718.40 = 5,939.84/x
  3. Step 3: Cross multiply
    9,810.56x = 14,718.40 × 5,939.84
  4. Step 4: Simplify right side
    9,810.56x = 87,424,941.06
  5. Step 5: Solve for x
    x = 87,424,941.06/9,810.56
  6. Step 6: Final answer
    x = 8,911.31

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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.