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Finding the Fourth Proportional to 70,347.42, 105,543.18 and 25,337.88

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Solution

The fourth proportional to 70,347.42, 105,543.18 and 25,337.88 is: 38,014.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,347.42 : 105,543.18 = 25,337.88 : x
  2. Step 2: Convert to fraction form
    70,347.42/105,543.18 = 25,337.88/x
  3. Step 3: Cross multiply
    70,347.42x = 105,543.18 × 25,337.88
  4. Step 4: Simplify right side
    70,347.42x = 2,674,240,429.66
  5. Step 5: Solve for x
    x = 2,674,240,429.66/70,347.42
  6. Step 6: Final answer
    x = 38,014.76

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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.