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Finding the Fourth Proportional to 9,975.65, 14,961.86 and 4,710.65

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Solution

The fourth proportional to 9,975.65, 14,961.86 and 4,710.65 is: 7,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,975.65 : 14,961.86 = 4,710.65 : x
  2. Step 2: Convert to fraction form
    9,975.65/14,961.86 = 4,710.65/x
  3. Step 3: Cross multiply
    9,975.65x = 14,961.86 × 4,710.65
  4. Step 4: Simplify right side
    9,975.65x = 70,480,085.81
  5. Step 5: Solve for x
    x = 70,480,085.81/9,975.65
  6. Step 6: Final answer
    x = 7,065.21

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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.