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Finding the Fourth Proportional to 19,937.58, 27,514.20 and 10,985.01

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Solution

The fourth proportional to 19,937.58, 27,514.20 and 10,985.01 is: 15,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.58 : 27,514.20 = 10,985.01 : x
  2. Step 2: Convert to fraction form
    19,937.58/27,514.20 = 10,985.01/x
  3. Step 3: Cross multiply
    19,937.58x = 27,514.20 × 10,985.01
  4. Step 4: Simplify right side
    19,937.58x = 302,243,762.14
  5. Step 5: Solve for x
    x = 302,243,762.14/19,937.58
  6. Step 6: Final answer
    x = 15,159.50

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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.