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Finding the Fourth Proportional to 70,656.90, 97,506.41 and 38,827.81

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Solution

The fourth proportional to 70,656.90, 97,506.41 and 38,827.81 is: 53,582.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,656.90 : 97,506.41 = 38,827.81 : x
  2. Step 2: Convert to fraction form
    70,656.90/97,506.41 = 38,827.81/x
  3. Step 3: Cross multiply
    70,656.90x = 97,506.41 × 38,827.81
  4. Step 4: Simplify right side
    70,656.90x = 3,785,960,361.26
  5. Step 5: Solve for x
    x = 3,785,960,361.26/70,656.90
  6. Step 6: Final answer
    x = 53,582.32

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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.