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Finding the Fourth Proportional to 70,308.56, 105,330.38 and 34,728.24

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Solution

The fourth proportional to 70,308.56, 105,330.38 and 34,728.24 is: 52,026.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,308.56 : 105,330.38 = 34,728.24 : x
  2. Step 2: Convert to fraction form
    70,308.56/105,330.38 = 34,728.24/x
  3. Step 3: Cross multiply
    70,308.56x = 105,330.38 × 34,728.24
  4. Step 4: Simplify right side
    70,308.56x = 3,657,938,715.93
  5. Step 5: Solve for x
    x = 3,657,938,715.93/70,308.56
  6. Step 6: Final answer
    x = 52,026.93

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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.