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Finding the Fourth Proportional to 70,097.68, 105,106.12 and 47,937.91

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Solution

The fourth proportional to 70,097.68, 105,106.12 and 47,937.91 is: 71,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,097.68 : 105,106.12 = 47,937.91 : x
  2. Step 2: Convert to fraction form
    70,097.68/105,106.12 = 47,937.91/x
  3. Step 3: Cross multiply
    70,097.68x = 105,106.12 × 47,937.91
  4. Step 4: Simplify right side
    70,097.68x = 5,038,567,721.01
  5. Step 5: Solve for x
    x = 5,038,567,721.01/70,097.68
  6. Step 6: Final answer
    x = 71,879.24

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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.