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Finding the Fourth Proportional to 70,358.40, 105,530.22 and 37,065.06

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Solution

The fourth proportional to 70,358.40, 105,530.22 and 37,065.06 is: 55,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,358.40 : 105,530.22 = 37,065.06 : x
  2. Step 2: Convert to fraction form
    70,358.40/105,530.22 = 37,065.06/x
  3. Step 3: Cross multiply
    70,358.40x = 105,530.22 × 37,065.06
  4. Step 4: Simplify right side
    70,358.40x = 3,911,483,936.11
  5. Step 5: Solve for x
    x = 3,911,483,936.11/70,358.40
  6. Step 6: Final answer
    x = 55,593.70

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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.