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Finding the Fourth Proportional to 58,452.80, 87,657.60 and 19,011.20

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Solution

The fourth proportional to 58,452.80, 87,657.60 and 19,011.20 is: 28,509.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,452.80 : 87,657.60 = 19,011.20 : x
  2. Step 2: Convert to fraction form
    58,452.80/87,657.60 = 19,011.20/x
  3. Step 3: Cross multiply
    58,452.80x = 87,657.60 × 19,011.20
  4. Step 4: Simplify right side
    58,452.80x = 1,666,476,165.12
  5. Step 5: Solve for x
    x = 1,666,476,165.12/58,452.80
  6. Step 6: Final answer
    x = 28,509.77

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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.