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Finding the Fourth Proportional to 67,809, 93,577.06 and 38,001.64

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Solution

The fourth proportional to 67,809, 93,577.06 and 38,001.64 is: 52,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,809 : 93,577.06 = 38,001.64 : x
  2. Step 2: Convert to fraction form
    67,809/93,577.06 = 38,001.64/x
  3. Step 3: Cross multiply
    67,809x = 93,577.06 × 38,001.64
  4. Step 4: Simplify right side
    67,809x = 3,556,081,746.38
  5. Step 5: Solve for x
    x = 3,556,081,746.38/67,809
  6. Step 6: Final answer
    x = 52,442.62

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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.