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Finding the Fourth Proportional to 70,853.64, 97,781.04 and 40,647.48

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Solution

The fourth proportional to 70,853.64, 97,781.04 and 40,647.48 is: 56,095.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,853.64 : 97,781.04 = 40,647.48 : x
  2. Step 2: Convert to fraction form
    70,853.64/97,781.04 = 40,647.48/x
  3. Step 3: Cross multiply
    70,853.64x = 97,781.04 × 40,647.48
  4. Step 4: Simplify right side
    70,853.64x = 3,974,552,867.78
  5. Step 5: Solve for x
    x = 3,974,552,867.78/70,853.64
  6. Step 6: Final answer
    x = 56,095.25

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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.