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Finding the Fourth Proportional to 86,582.60, 129,873.90 and 49,616.20

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Solution

The fourth proportional to 86,582.60, 129,873.90 and 49,616.20 is: 74,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,582.60 : 129,873.90 = 49,616.20 : x
  2. Step 2: Convert to fraction form
    86,582.60/129,873.90 = 49,616.20/x
  3. Step 3: Cross multiply
    86,582.60x = 129,873.90 × 49,616.20
  4. Step 4: Simplify right side
    86,582.60x = 6,443,849,397.18
  5. Step 5: Solve for x
    x = 6,443,849,397.18/86,582.60
  6. Step 6: Final answer
    x = 74,424.30

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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.