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Finding the Fourth Proportional to 70,645.50, 97,468.80 and 43,392.99

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Solution

The fourth proportional to 70,645.50, 97,468.80 and 43,392.99 is: 59,868.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,645.50 : 97,468.80 = 43,392.99 : x
  2. Step 2: Convert to fraction form
    70,645.50/97,468.80 = 43,392.99/x
  3. Step 3: Cross multiply
    70,645.50x = 97,468.80 × 43,392.99
  4. Step 4: Simplify right side
    70,645.50x = 4,229,462,866.50
  5. Step 5: Solve for x
    x = 4,229,462,866.50/70,645.50
  6. Step 6: Final answer
    x = 59,868.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.