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Finding the Fourth Proportional to 46,495.60, 69,746.10 and 13,218.10

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Solution

The fourth proportional to 46,495.60, 69,746.10 and 13,218.10 is: 19,827.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,495.60 : 69,746.10 = 13,218.10 : x
  2. Step 2: Convert to fraction form
    46,495.60/69,746.10 = 13,218.10/x
  3. Step 3: Cross multiply
    46,495.60x = 69,746.10 × 13,218.10
  4. Step 4: Simplify right side
    46,495.60x = 921,910,924.41
  5. Step 5: Solve for x
    x = 921,910,924.41/46,495.60
  6. Step 6: Final answer
    x = 19,827.92

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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.