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Finding the Fourth Proportional to 69,449.47, 104,312.59 and 65,532.69

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Solution

The fourth proportional to 69,449.47, 104,312.59 and 65,532.69 is: 98,429.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,449.47 : 104,312.59 = 65,532.69 : x
  2. Step 2: Convert to fraction form
    69,449.47/104,312.59 = 65,532.69/x
  3. Step 3: Cross multiply
    69,449.47x = 104,312.59 × 65,532.69
  4. Step 4: Simplify right side
    69,449.47x = 6,835,884,459.74
  5. Step 5: Solve for x
    x = 6,835,884,459.74/69,449.47
  6. Step 6: Final answer
    x = 98,429.62

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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.