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Finding the Fourth Proportional to 58,254.84, 87,354.65 and 20,290.87

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Solution

The fourth proportional to 58,254.84, 87,354.65 and 20,290.87 is: 30,426.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,254.84 : 87,354.65 = 20,290.87 : x
  2. Step 2: Convert to fraction form
    58,254.84/87,354.65 = 20,290.87/x
  3. Step 3: Cross multiply
    58,254.84x = 87,354.65 × 20,290.87
  4. Step 4: Simplify right side
    58,254.84x = 1,772,502,006.97
  5. Step 5: Solve for x
    x = 1,772,502,006.97/58,254.84
  6. Step 6: Final answer
    x = 30,426.69

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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.