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Finding the Fourth Proportional to 46,991.88, 70,442.46 and 15,810.12

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Solution

The fourth proportional to 46,991.88, 70,442.46 and 15,810.12 is: 23,699.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,991.88 : 70,442.46 = 15,810.12 : x
  2. Step 2: Convert to fraction form
    46,991.88/70,442.46 = 15,810.12/x
  3. Step 3: Cross multiply
    46,991.88x = 70,442.46 × 15,810.12
  4. Step 4: Simplify right side
    46,991.88x = 1,113,703,745.70
  5. Step 5: Solve for x
    x = 1,113,703,745.70/46,991.88
  6. Step 6: Final answer
    x = 23,699.92

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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.