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Finding the Fourth Proportional to 58,916.64, 81,304.86 and 33,428.01

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Solution

The fourth proportional to 58,916.64, 81,304.86 and 33,428.01 is: 46,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,916.64 : 81,304.86 = 33,428.01 : x
  2. Step 2: Convert to fraction form
    58,916.64/81,304.86 = 33,428.01/x
  3. Step 3: Cross multiply
    58,916.64x = 81,304.86 × 33,428.01
  4. Step 4: Simplify right side
    58,916.64x = 2,717,859,673.13
  5. Step 5: Solve for x
    x = 2,717,859,673.13/58,916.64
  6. Step 6: Final answer
    x = 46,130.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.