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Finding the Fourth Proportional to 19,242.76, 26,554.80 and 10,859.08

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Solution

The fourth proportional to 19,242.76, 26,554.80 and 10,859.08 is: 14,985.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.76 : 26,554.80 = 10,859.08 : x
  2. Step 2: Convert to fraction form
    19,242.76/26,554.80 = 10,859.08/x
  3. Step 3: Cross multiply
    19,242.76x = 26,554.80 × 10,859.08
  4. Step 4: Simplify right side
    19,242.76x = 288,360,697.58
  5. Step 5: Solve for x
    x = 288,360,697.58/19,242.76
  6. Step 6: Final answer
    x = 14,985.41

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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.