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Finding the Fourth Proportional to 9,810.74, 14,707.82 and 4,259.88

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Solution

The fourth proportional to 9,810.74, 14,707.82 and 4,259.88 is: 6,386.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,810.74 : 14,707.82 = 4,259.88 : x
  2. Step 2: Convert to fraction form
    9,810.74/14,707.82 = 4,259.88/x
  3. Step 3: Cross multiply
    9,810.74x = 14,707.82 × 4,259.88
  4. Step 4: Simplify right side
    9,810.74x = 62,653,548.26
  5. Step 5: Solve for x
    x = 62,653,548.26/9,810.74
  6. Step 6: Final answer
    x = 6,386.22

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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.