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Finding the Fourth Proportional to 70,015.24, 105,064.39 and 65,582.24

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Solution

The fourth proportional to 70,015.24, 105,064.39 and 65,582.24 is: 98,412.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,015.24 : 105,064.39 = 65,582.24 : x
  2. Step 2: Convert to fraction form
    70,015.24/105,064.39 = 65,582.24/x
  3. Step 3: Cross multiply
    70,015.24x = 105,064.39 × 65,582.24
  4. Step 4: Simplify right side
    70,015.24x = 6,890,358,631.32
  5. Step 5: Solve for x
    x = 6,890,358,631.32/70,015.24
  6. Step 6: Final answer
    x = 98,412.27

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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.