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Finding the Fourth Proportional to 70,582.40, 97,403.88 and 38,753.34

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Solution

The fourth proportional to 70,582.40, 97,403.88 and 38,753.34 is: 53,479.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,582.40 : 97,403.88 = 38,753.34 : x
  2. Step 2: Convert to fraction form
    70,582.40/97,403.88 = 38,753.34/x
  3. Step 3: Cross multiply
    70,582.40x = 97,403.88 × 38,753.34
  4. Step 4: Simplify right side
    70,582.40x = 3,774,725,678.96
  5. Step 5: Solve for x
    x = 3,774,725,678.96/70,582.40
  6. Step 6: Final answer
    x = 53,479.70

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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.