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Finding the Fourth Proportional to 70,446.32, 105,574.40 and 35,411.12

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Solution

The fourth proportional to 70,446.32, 105,574.40 and 35,411.12 is: 53,068.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,446.32 : 105,574.40 = 35,411.12 : x
  2. Step 2: Convert to fraction form
    70,446.32/105,574.40 = 35,411.12/x
  3. Step 3: Cross multiply
    70,446.32x = 105,574.40 × 35,411.12
  4. Step 4: Simplify right side
    70,446.32x = 3,738,507,747.33
  5. Step 5: Solve for x
    x = 3,738,507,747.33/70,446.32
  6. Step 6: Final answer
    x = 53,068.89

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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.