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Finding the Fourth Proportional to 46,842.86, 70,264.41 and 19,140.86

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Solution

The fourth proportional to 46,842.86, 70,264.41 and 19,140.86 is: 28,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,842.86 : 70,264.41 = 19,140.86 : x
  2. Step 2: Convert to fraction form
    46,842.86/70,264.41 = 19,140.86/x
  3. Step 3: Cross multiply
    46,842.86x = 70,264.41 × 19,140.86
  4. Step 4: Simplify right side
    46,842.86x = 1,344,921,234.79
  5. Step 5: Solve for x
    x = 1,344,921,234.79/46,842.86
  6. Step 6: Final answer
    x = 28,711.34

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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.