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Finding the Fourth Proportional to 46,720.74, 70,080.75 and 11,660.16

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Solution

The fourth proportional to 46,720.74, 70,080.75 and 11,660.16 is: 17,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,720.74 : 70,080.75 = 11,660.16 : x
  2. Step 2: Convert to fraction form
    46,720.74/70,080.75 = 11,660.16/x
  3. Step 3: Cross multiply
    46,720.74x = 70,080.75 × 11,660.16
  4. Step 4: Simplify right side
    46,720.74x = 817,152,757.92
  5. Step 5: Solve for x
    x = 817,152,757.92/46,720.74
  6. Step 6: Final answer
    x = 17,490.15

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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.