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Finding the Fourth Proportional to 86,657.52, 119,595.40 and 52,658.12

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Solution

The fourth proportional to 86,657.52, 119,595.40 and 52,658.12 is: 72,673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,657.52 : 119,595.40 = 52,658.12 : x
  2. Step 2: Convert to fraction form
    86,657.52/119,595.40 = 52,658.12/x
  3. Step 3: Cross multiply
    86,657.52x = 119,595.40 × 52,658.12
  4. Step 4: Simplify right side
    86,657.52x = 6,297,668,924.65
  5. Step 5: Solve for x
    x = 6,297,668,924.65/86,657.52
  6. Step 6: Final answer
    x = 72,673.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.