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Finding the Fourth Proportional to 75,015.58, 103,486.26 and 53,510.08

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Solution

The fourth proportional to 75,015.58, 103,486.26 and 53,510.08 is: 73,818.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,015.58 : 103,486.26 = 53,510.08 : x
  2. Step 2: Convert to fraction form
    75,015.58/103,486.26 = 53,510.08/x
  3. Step 3: Cross multiply
    75,015.58x = 103,486.26 × 53,510.08
  4. Step 4: Simplify right side
    75,015.58x = 5,537,558,051.50
  5. Step 5: Solve for x
    x = 5,537,558,051.50/75,015.58
  6. Step 6: Final answer
    x = 73,818.77

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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.