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Finding the Fourth Proportional to 70,509.19, 105,764.15 and 23,762.47

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Solution

The fourth proportional to 70,509.19, 105,764.15 and 23,762.47 is: 35,643.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,509.19 : 105,764.15 = 23,762.47 : x
  2. Step 2: Convert to fraction form
    70,509.19/105,764.15 = 23,762.47/x
  3. Step 3: Cross multiply
    70,509.19x = 105,764.15 × 23,762.47
  4. Step 4: Simplify right side
    70,509.19x = 2,513,217,441.45
  5. Step 5: Solve for x
    x = 2,513,217,441.45/70,509.19
  6. Step 6: Final answer
    x = 35,643.83

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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.