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Finding the Fourth Proportional to 70,530.98, 97,332.86 and 38,700.11

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Solution

The fourth proportional to 70,530.98, 97,332.86 and 38,700.11 is: 53,406.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,530.98 : 97,332.86 = 38,700.11 : x
  2. Step 2: Convert to fraction form
    70,530.98/97,332.86 = 38,700.11/x
  3. Step 3: Cross multiply
    70,530.98x = 97,332.86 × 38,700.11
  4. Step 4: Simplify right side
    70,530.98x = 3,766,792,728.70
  5. Step 5: Solve for x
    x = 3,766,792,728.70/70,530.98
  6. Step 6: Final answer
    x = 53,406.22

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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.