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Finding the Fourth Proportional to 17,987.60, 24,821.60 and 10,030.28

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Solution

The fourth proportional to 17,987.60, 24,821.60 and 10,030.28 is: 13,841.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.60 : 24,821.60 = 10,030.28 : x
  2. Step 2: Convert to fraction form
    17,987.60/24,821.60 = 10,030.28/x
  3. Step 3: Cross multiply
    17,987.60x = 24,821.60 × 10,030.28
  4. Step 4: Simplify right side
    17,987.60x = 248,967,598.05
  5. Step 5: Solve for x
    x = 248,967,598.05/17,987.60
  6. Step 6: Final answer
    x = 13,841.07

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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.