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Finding the Fourth Proportional to 14,574.64, 21,862.64 and 4,714.69

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Solution

The fourth proportional to 14,574.64, 21,862.64 and 4,714.69 is: 7,072.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.64 : 21,862.64 = 4,714.69 : x
  2. Step 2: Convert to fraction form
    14,574.64/21,862.64 = 4,714.69/x
  3. Step 3: Cross multiply
    14,574.64x = 21,862.64 × 4,714.69
  4. Step 4: Simplify right side
    14,574.64x = 103,075,506.82
  5. Step 5: Solve for x
    x = 103,075,506.82/14,574.64
  6. Step 6: Final answer
    x = 7,072.25

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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.