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Finding the Fourth Proportional to 70,215.64, 105,302.04 and 36,917.64

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Solution

The fourth proportional to 70,215.64, 105,302.04 and 36,917.64 is: 55,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,215.64 : 105,302.04 = 36,917.64 : x
  2. Step 2: Convert to fraction form
    70,215.64/105,302.04 = 36,917.64/x
  3. Step 3: Cross multiply
    70,215.64x = 105,302.04 × 36,917.64
  4. Step 4: Simplify right side
    70,215.64x = 3,887,502,803.99
  5. Step 5: Solve for x
    x = 3,887,502,803.99/70,215.64
  6. Step 6: Final answer
    x = 55,365.20

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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.