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Finding the Fourth Proportional to 62,802.58, 86,646.13 and 38,920.54

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Solution

The fourth proportional to 62,802.58, 86,646.13 and 38,920.54 is: 53,697.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,802.58 : 86,646.13 = 38,920.54 : x
  2. Step 2: Convert to fraction form
    62,802.58/86,646.13 = 38,920.54/x
  3. Step 3: Cross multiply
    62,802.58x = 86,646.13 × 38,920.54
  4. Step 4: Simplify right side
    62,802.58x = 3,372,314,168.51
  5. Step 5: Solve for x
    x = 3,372,314,168.51/62,802.58
  6. Step 6: Final answer
    x = 53,697.06

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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.