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Finding the Fourth Proportional to 59,799, 89,703.72 and 15,425.40

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Solution

The fourth proportional to 59,799, 89,703.72 and 15,425.40 is: 23,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,799 : 89,703.72 = 15,425.40 : x
  2. Step 2: Convert to fraction form
    59,799/89,703.72 = 15,425.40/x
  3. Step 3: Cross multiply
    59,799x = 89,703.72 × 15,425.40
  4. Step 4: Simplify right side
    59,799x = 1,383,715,762.49
  5. Step 5: Solve for x
    x = 1,383,715,762.49/59,799
  6. Step 6: Final answer
    x = 23,139.45

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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.