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Finding the Fourth Proportional to 47,276.10, 70,914.15 and 42,668.10

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Solution

The fourth proportional to 47,276.10, 70,914.15 and 42,668.10 is: 64,002.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,276.10 : 70,914.15 = 42,668.10 : x
  2. Step 2: Convert to fraction form
    47,276.10/70,914.15 = 42,668.10/x
  3. Step 3: Cross multiply
    47,276.10x = 70,914.15 × 42,668.10
  4. Step 4: Simplify right side
    47,276.10x = 3,025,772,043.62
  5. Step 5: Solve for x
    x = 3,025,772,043.62/47,276.10
  6. Step 6: Final answer
    x = 64,002.15

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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.