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Finding the Fourth Proportional to 60,514.59, 90,743.09 and 21,066.87

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Solution

The fourth proportional to 60,514.59, 90,743.09 and 21,066.87 is: 31,590.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,514.59 : 90,743.09 = 21,066.87 : x
  2. Step 2: Convert to fraction form
    60,514.59/90,743.09 = 21,066.87/x
  3. Step 3: Cross multiply
    60,514.59x = 90,743.09 × 21,066.87
  4. Step 4: Simplify right side
    60,514.59x = 1,911,672,775.09
  5. Step 5: Solve for x
    x = 1,911,672,775.09/60,514.59
  6. Step 6: Final answer
    x = 31,590.28

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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.