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Finding the Fourth Proportional to 60,003.80, 89,897.70 and 47,605.40

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Solution

The fourth proportional to 60,003.80, 89,897.70 and 47,605.40 is: 71,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,003.80 : 89,897.70 = 47,605.40 : x
  2. Step 2: Convert to fraction form
    60,003.80/89,897.70 = 47,605.40/x
  3. Step 3: Cross multiply
    60,003.80x = 89,897.70 × 47,605.40
  4. Step 4: Simplify right side
    60,003.80x = 4,279,615,967.58
  5. Step 5: Solve for x
    x = 4,279,615,967.58/60,003.80
  6. Step 6: Final answer
    x = 71,322.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.