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Finding the Fourth Proportional to 70,526.45, 105,883.47 and 40,965.50

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Solution

The fourth proportional to 70,526.45, 105,883.47 and 40,965.50 is: 61,502.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,526.45 : 105,883.47 = 40,965.50 : x
  2. Step 2: Convert to fraction form
    70,526.45/105,883.47 = 40,965.50/x
  3. Step 3: Cross multiply
    70,526.45x = 105,883.47 × 40,965.50
  4. Step 4: Simplify right side
    70,526.45x = 4,337,569,554.99
  5. Step 5: Solve for x
    x = 4,337,569,554.99/70,526.45
  6. Step 6: Final answer
    x = 61,502.73

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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.