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Finding the Fourth Proportional to 70,223.58, 96,908.53 and 38,392.47

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Solution

The fourth proportional to 70,223.58, 96,908.53 and 38,392.47 is: 52,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,223.58 : 96,908.53 = 38,392.47 : x
  2. Step 2: Convert to fraction form
    70,223.58/96,908.53 = 38,392.47/x
  3. Step 3: Cross multiply
    70,223.58x = 96,908.53 × 38,392.47
  4. Step 4: Simplify right side
    70,223.58x = 3,720,557,830.77
  5. Step 5: Solve for x
    x = 3,720,557,830.77/70,223.58
  6. Step 6: Final answer
    x = 52,981.60

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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.