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Finding the Fourth Proportional to 18,909.53, 26,095.77 and 10,412.06

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Solution

The fourth proportional to 18,909.53, 26,095.77 and 10,412.06 is: 14,368.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.53 : 26,095.77 = 10,412.06 : x
  2. Step 2: Convert to fraction form
    18,909.53/26,095.77 = 10,412.06/x
  3. Step 3: Cross multiply
    18,909.53x = 26,095.77 × 10,412.06
  4. Step 4: Simplify right side
    18,909.53x = 271,710,592.51
  5. Step 5: Solve for x
    x = 271,710,592.51/18,909.53
  6. Step 6: Final answer
    x = 14,368.98

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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.