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Finding the Fourth Proportional to 14,035.51, 21,036.86 and 7,792.53

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Solution

The fourth proportional to 14,035.51, 21,036.86 and 7,792.53 is: 11,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,035.51 : 21,036.86 = 7,792.53 : x
  2. Step 2: Convert to fraction form
    14,035.51/21,036.86 = 7,792.53/x
  3. Step 3: Cross multiply
    14,035.51x = 21,036.86 × 7,792.53
  4. Step 4: Simplify right side
    14,035.51x = 163,930,323.69
  5. Step 5: Solve for x
    x = 163,930,323.69/14,035.51
  6. Step 6: Final answer
    x = 11,679.68

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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.