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Finding the Fourth Proportional to 70,623.40, 105,881.10 and 35,588.20

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Solution

The fourth proportional to 70,623.40, 105,881.10 and 35,588.20 is: 53,355.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,623.40 : 105,881.10 = 35,588.20 : x
  2. Step 2: Convert to fraction form
    70,623.40/105,881.10 = 35,588.20/x
  3. Step 3: Cross multiply
    70,623.40x = 105,881.10 × 35,588.20
  4. Step 4: Simplify right side
    70,623.40x = 3,768,117,763.02
  5. Step 5: Solve for x
    x = 3,768,117,763.02/70,623.40
  6. Step 6: Final answer
    x = 53,355.09

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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.