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Finding the Fourth Proportional to 14,047.96, 21,075.78 and 4,688.80

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Solution

The fourth proportional to 14,047.96, 21,075.78 and 4,688.80 is: 7,034.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.96 : 21,075.78 = 4,688.80 : x
  2. Step 2: Convert to fraction form
    14,047.96/21,075.78 = 4,688.80/x
  3. Step 3: Cross multiply
    14,047.96x = 21,075.78 × 4,688.80
  4. Step 4: Simplify right side
    14,047.96x = 98,820,117.26
  5. Step 5: Solve for x
    x = 98,820,117.26/14,047.96
  6. Step 6: Final answer
    x = 7,034.48

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