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Finding the Fourth Proportional to 60,504.64, 90,749.67 and 21,058.45

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Solution

The fourth proportional to 60,504.64, 90,749.67 and 21,058.45 is: 31,585.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,504.64 : 90,749.67 = 21,058.45 : x
  2. Step 2: Convert to fraction form
    60,504.64/90,749.67 = 21,058.45/x
  3. Step 3: Cross multiply
    60,504.64x = 90,749.67 × 21,058.45
  4. Step 4: Simplify right side
    60,504.64x = 1,911,047,388.21
  5. Step 5: Solve for x
    x = 1,911,047,388.21/60,504.64
  6. Step 6: Final answer
    x = 31,585.14

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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.