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Finding the Fourth Proportional to 58,465.20, 87,697.80 and 16,916.40

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Solution

The fourth proportional to 58,465.20, 87,697.80 and 16,916.40 is: 25,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,465.20 : 87,697.80 = 16,916.40 : x
  2. Step 2: Convert to fraction form
    58,465.20/87,697.80 = 16,916.40/x
  3. Step 3: Cross multiply
    58,465.20x = 87,697.80 × 16,916.40
  4. Step 4: Simplify right side
    58,465.20x = 1,483,531,063.92
  5. Step 5: Solve for x
    x = 1,483,531,063.92/58,465.20
  6. Step 6: Final answer
    x = 25,374.60

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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.