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Finding the Fourth Proportional to 70,659.91, 97,506.08 and 40,445.47

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Solution

The fourth proportional to 70,659.91, 97,506.08 and 40,445.47 is: 55,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,659.91 : 97,506.08 = 40,445.47 : x
  2. Step 2: Convert to fraction form
    70,659.91/97,506.08 = 40,445.47/x
  3. Step 3: Cross multiply
    70,659.91x = 97,506.08 × 40,445.47
  4. Step 4: Simplify right side
    70,659.91x = 3,943,678,745.93
  5. Step 5: Solve for x
    x = 3,943,678,745.93/70,659.91
  6. Step 6: Final answer
    x = 55,812.12

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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.