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Finding the Fourth Proportional to 48,462.90, 72,694.11 and 12,924.15

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Solution

The fourth proportional to 48,462.90, 72,694.11 and 12,924.15 is: 19,386.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,462.90 : 72,694.11 = 12,924.15 : x
  2. Step 2: Convert to fraction form
    48,462.90/72,694.11 = 12,924.15/x
  3. Step 3: Cross multiply
    48,462.90x = 72,694.11 × 12,924.15
  4. Step 4: Simplify right side
    48,462.90x = 939,509,581.76
  5. Step 5: Solve for x
    x = 939,509,581.76/48,462.90
  6. Step 6: Final answer
    x = 19,386.16

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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.