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Finding the Fourth Proportional to 46,681.54, 70,022.16 and 11,621.18

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Solution

The fourth proportional to 46,681.54, 70,022.16 and 11,621.18 is: 17,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,681.54 : 70,022.16 = 11,621.18 : x
  2. Step 2: Convert to fraction form
    46,681.54/70,022.16 = 11,621.18/x
  3. Step 3: Cross multiply
    46,681.54x = 70,022.16 × 11,621.18
  4. Step 4: Simplify right side
    46,681.54x = 813,740,300.40
  5. Step 5: Solve for x
    x = 813,740,300.40/46,681.54
  6. Step 6: Final answer
    x = 17,431.74

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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.