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Finding the Fourth Proportional to 58,987.40, 88,481.10 and 53,155.40

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Solution

The fourth proportional to 58,987.40, 88,481.10 and 53,155.40 is: 79,733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,987.40 : 88,481.10 = 53,155.40 : x
  2. Step 2: Convert to fraction form
    58,987.40/88,481.10 = 53,155.40/x
  3. Step 3: Cross multiply
    58,987.40x = 88,481.10 × 53,155.40
  4. Step 4: Simplify right side
    58,987.40x = 4,703,248,262.94
  5. Step 5: Solve for x
    x = 4,703,248,262.94/58,987.40
  6. Step 6: Final answer
    x = 79,733.10

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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.