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Finding the Fourth Proportional to 70,095.70, 105,117.57 and 25,110.05

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Solution

The fourth proportional to 70,095.70, 105,117.57 and 25,110.05 is: 37,655.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,095.70 : 105,117.57 = 25,110.05 : x
  2. Step 2: Convert to fraction form
    70,095.70/105,117.57 = 25,110.05/x
  3. Step 3: Cross multiply
    70,095.70x = 105,117.57 × 25,110.05
  4. Step 4: Simplify right side
    70,095.70x = 2,639,507,438.58
  5. Step 5: Solve for x
    x = 2,639,507,438.58/70,095.70
  6. Step 6: Final answer
    x = 37,655.77

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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.