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Finding the Fourth Proportional to 70,319.66, 97,037.39 and 38,482.40

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Solution

The fourth proportional to 70,319.66, 97,037.39 and 38,482.40 is: 53,103.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,319.66 : 97,037.39 = 38,482.40 : x
  2. Step 2: Convert to fraction form
    70,319.66/97,037.39 = 38,482.40/x
  3. Step 3: Cross multiply
    70,319.66x = 97,037.39 × 38,482.40
  4. Step 4: Simplify right side
    70,319.66x = 3,734,231,656.94
  5. Step 5: Solve for x
    x = 3,734,231,656.94/70,319.66
  6. Step 6: Final answer
    x = 53,103.66

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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.