Home / 70,728.17-97,609.73-38,897.06

Finding the Fourth Proportional to 70,728.17, 97,609.73 and 38,897.06

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Solution

The fourth proportional to 70,728.17, 97,609.73 and 38,897.06 is: 53,680.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,728.17 : 97,609.73 = 38,897.06 : x
  2. Step 2: Convert to fraction form
    70,728.17/97,609.73 = 38,897.06/x
  3. Step 3: Cross multiply
    70,728.17x = 97,609.73 × 38,897.06
  4. Step 4: Simplify right side
    70,728.17x = 3,796,730,841.86
  5. Step 5: Solve for x
    x = 3,796,730,841.86/70,728.17
  6. Step 6: Final answer
    x = 53,680.61

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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.