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Finding the Fourth Proportional to 58,412.64, 87,632.76 and 18,966.72

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Solution

The fourth proportional to 58,412.64, 87,632.76 and 18,966.72 is: 28,454.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,412.64 : 87,632.76 = 18,966.72 : x
  2. Step 2: Convert to fraction form
    58,412.64/87,632.76 = 18,966.72/x
  3. Step 3: Cross multiply
    58,412.64x = 87,632.76 × 18,966.72
  4. Step 4: Simplify right side
    58,412.64x = 1,662,106,021.75
  5. Step 5: Solve for x
    x = 1,662,106,021.75/58,412.64
  6. Step 6: Final answer
    x = 28,454.56

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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.