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Finding the Fourth Proportional to 70,587.62, 97,411.08 and 38,758.57

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Solution

The fourth proportional to 70,587.62, 97,411.08 and 38,758.57 is: 53,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,587.62 : 97,411.08 = 38,758.57 : x
  2. Step 2: Convert to fraction form
    70,587.62/97,411.08 = 38,758.57/x
  3. Step 3: Cross multiply
    70,587.62x = 97,411.08 × 38,758.57
  4. Step 4: Simplify right side
    70,587.62x = 3,775,513,919.43
  5. Step 5: Solve for x
    x = 3,775,513,919.43/70,587.62
  6. Step 6: Final answer
    x = 53,486.92

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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.