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Finding the Fourth Proportional to 46,642.60, 69,943.26 and 13,355.08

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Solution

The fourth proportional to 46,642.60, 69,943.26 and 13,355.08 is: 20,026.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,642.60 : 69,943.26 = 13,355.08 : x
  2. Step 2: Convert to fraction form
    46,642.60/69,943.26 = 13,355.08/x
  3. Step 3: Cross multiply
    46,642.60x = 69,943.26 × 13,355.08
  4. Step 4: Simplify right side
    46,642.60x = 934,097,832.76
  5. Step 5: Solve for x
    x = 934,097,832.76/46,642.60
  6. Step 6: Final answer
    x = 20,026.71

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1.5x scale

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.